DOCSLIB.ORG

Colorado Birds the Colorado Field Ornithologists’ Quarterly

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Colorado Birds the Colorado Field Ornithologists’ Quarterly Vol. 47 No. 4 October 2013 Colorado Birds The Colorado Field Ornithologists’ Quarterly Piping Plovers in Colorado Water it and They Will Come Hungry Birder: Breckenridge Colorado Field Ornithologists PO Box 643, Boulder, Colorado 80306 www.cfobirds.org Colorado Birds (USPS 0446-190) (ISSN 1094-0030) is published quarterly by the Colo- rado Field Ornithologists, P.O. Box 643, Boulder, CO 80306. Subscriptions are obtained through annual membership dues. Nonprofit postage paid at Louisville, CO. POST- MASTER: Send address changes to Colorado Birds, P.O. Box 643, Boulder, CO 80306. Officers and Directors of Colorado Field Ornithologists: Dates indicate end of current term. An asterisk indicates eligibility for re-election. Terms expire 5/31. Officers: President: Bill Kaempfer, Boulder, 2014; [email protected]; Vice Presi- dent: Christian Nunes, Boulder, 2015*; [email protected]; Secretary: Larry Modesitt, Greenwood Village, 2015; [email protected]; Treasurer: Tom Wilberd- ing, Boulder, 2015*; [email protected] Directors: Jim Beatty, Durango, 2014; Christy Carello, Golden, 2016*; Lisa Edwards, Falcon, 2014*; Ted Floyd, Lafayette, 2014*; Mike Henwood, Grand Junction, 2015*; Brenda Linfield, Boulder, 2016; Joe Roller, Denver, 2015. Colorado Bird Records Committee: Dates indicate end of current term. An asterisk indicates eligibility to serve another term. Terms expire 12/31. Chair: Doug Faulkner, Arvada, 2013*; [email protected] Secretary: Rachel Hopper, Fort Collins Committee Members: John Drummond, Monument, 2013*; Bill Maynard, Colorado Springs, 2013; Brandon Percival, Pueblo West, 2016*; Bill Schmoker, Longmont, 2013*; David Silverman, Rye, 2014; Glenn Walbek, Castle Rock, 2015. Colorado Birds Quarterly: Editor: Peter Burke, [email protected] Staff: Christian Nunes (Photo Editor), [email protected]; Hugh Kingery (Field Notes Editor), [email protected]; Tony Leukering (In the Scope Editor), GreatGrayOwl@ aol.com; Ted Floyd (Conversations Editor), [email protected]; Mike Henwood (News from the Field Editor), [email protected] Annual Membership Dues (renewable quarterly): General $25; Youth (under 18) $12; Institution $30. Membership dues entitle members to a subscription to Colorado Birds, which is published quarterly. Back issues/extra copies may be ordered for $6.00. Send requests for extra copies/back issues, change of address and membership renewals to CFO, P.O. Box 643, Boulder, CO 80306; make checks out to Colorado Field Ornitholo- gists. Contributions are tax deductible to the extent allowed by law. COPYRIGHT © 2013 by Colorado Field Ornithologists. Reproduction of articles is permitted only under consent from the publisher. Works by U.S. and Canadian governments are not copyrighted. 226 Colorado Birds October 2013 Vol. 47 No. 4 The Colorado Field Ornithologists’ Quarterly Vol. 47 No. 4 October 2013 PRESIDENT’S MESSAGE ....................................... 228 Bill Kaempfer CFO BOARD MEETING MINUTES ......................... 230 Larry Modesitt CONVERSATIONS: PETER BURKE ........................ 232 Ted Floyd (Ed.) THE STATUS OF PIPING PLOVERS AS A COLORADO NESTING SPECIES, 1990–2013 ......... 236 Duane Nelson WATER IT AND THEY WILL COME— LOWER SOUTH PLATTE BIRD DIVERSITY, HISTORY AND OUTLOOK ..................................... 243 Bruce Bosley FIELD NOTE: NORTHEAST COLORADO ................ 246 Bill Kaempfer CBRC WEBSITE ANNOUNCEMENT ....................... 248 Doug Faulkner THE 68TH REPORT OF THE CBRC ......................... 252 Doug Faulkner NEWS FROM THE FIELD: SPRING 2013 .............. 264 Mike Henwood THE HUNGRY BIRDER: BRECKENRIDGE ............ 294 Christy Carello Western Scrub-Jay, Red IN THE SCOPE: Rocks Trading WARM-COLORED MOUNTAIN BLUEBIRDS .......... 297 Post, Jefferson County, 11 Tony Leukering February 2013. Photo THE HUNGRY BIRD: CATERPILLAR TRICKS ...... 300 by Peter Burke Dave Leatherman PRESIDENT’S MESSAGE New Year’s Resolutions Bill Kaempfer So, who’s still on track with their 2013 New Year’s resolutions? I am! I resolved to use eBird this year—all the time, complete lists, no excuses. And I’m still on track. Although eBird is pretty easy to use, it does require some effort, yet using eBird keeps me better organized as a record keeper, on track and current. And using eBird has an enormous payoff beyond just tracking one’s own list. I now use it all the time to see what’s showing up in Colorado and elsewhere, and what’s on the lists of others. I use it for planning my trips, looking at historical records and so forth. As an example of some things I’ve learned using eBird informa- tion, the other day (once I had made my goal of 300 species observed for Colorado during 2013) I used eBird to compare Colorado Birding activity to the rest of the country. I discovered just how much birding goes on in our state. Of the 50 states, Colorado ranks 6th for number of species recorded and verified by eBird so far for 2013, ranking be- hind only Texas, California, Florida, Arizona and New Mexico. As of mid-August there were 11 birders who had managed the 300 year-list level in our state, which ranked third in the country behind bird- ing behemoths Texas and California. My conclusion? Colorado has amazing bird variety and that variety keeps some pretty outstanding birders busy. With all those birds and birders, do we also have a state birding organization that delivers? I certainly think so, and this edition of Colorado Birds will make clear some of the things that the CFO is doing to make birding in Colorado even better. First is Colorado Birds itself, the CFO’s quarterly journal. With this issue we welcome Peter Burke as our new editor after seven plus years of excellent work by previous editor, Nathan Pieplow. In July I thanked Nathan for his outstanding efforts toward putting the state of birds and birding in Colorado in print. To get to know Peter better, you may want to visit Ted Floyd’s blog on the CFO website (http://www.cfobirds.org/busi- ness/index.php#Last%20Chance%20-%20First) or see Ted Floyd’s Conversations on page 232. In addition, the CFO has invested in significant changes to its Colorado Birds Records Committee site. An entirely new records submission process took effect in late August that makes submitting a formal record of a rare sighting much easier. Doug Faulkner, chair of the CBRC, explains these changes on page 248. Finally, the major event that defines CFO every year is its con- 228 Colorado Birds October 2013 Vol. 47 No. 4 vention. At the 2013 con- vention in Cortez, we an- nounced our plans to host the 2014 convention in Sterling—as far from Cor- tez as we could get! I’d like to confirm this and pass on the additional news that the CFO Board has decid- ed to take the plunge and have the 2014 convention August 28-31. An August convention in North- east Colorado gives CFO members the best possible opportunity to explore the spectacular post-breeding shorebird migration that comes across the high plains. With extensive mudflats exposed after summer water draw-downs at the five large reservoirs An example of the many tools available to birders along the South Platte through eBird. (Jumbo, North Sterling, Prewitt, Jackson and Riverside—yes we hope to include trips there, too) thou- sands of shorebirds, including some rarities, often show up. In August 2013, I led a CFO field trip to the Sterling area, so check my trip report on page 246 for a preview of what to expect at the August 2014 convention. I’m also proud to announce that our featured speaker will be none other than Jon L. Dunn! One of the preeminent field ornithologists of his time, Jon has been Chief Consultant on the National Geographic Field Guide since the first publishing in 1983. His Field Guide to Warblers of North America (Peterson se- ries, 1997 and co-authored with Kimball Garrett) is perhaps the finest and most complete work on that subject. Finally, Jon collaborated with our own John Vanderpoel to create The Advanced Birding Video Series that includes Humming- birds of North America, The Large Gulls of North America and The Small Gulls of North America. So mark your calendars and join us next fall in Sterling! Bill Kaempfer, [email protected] Colorado Birds October 2013 Vol. 47 No. 4 229 CFO BOARD MEETING MINUTES 10 August 2013 Mountain Research Station, Boulder County, CO Larry Modesitt President Bill Kaempfer called the August quarterly meeting to order at 11:30 A.M. (after a CFO Board bird walk on Niwot Ridge where we saw a family of Dusky Grouse and a Say’s Phoebe at 11,500’, among other expected species). Other officers present were Vice President Christian Nunes, Secretary Larry Modesitt, and Treasurer Tom Wilberding. Directors Jim Beatty, Peter Burke, Christy Carello, Lisa Edwards, Mike Henwood, Brenda Linfield, Joe Roller and Ted Floyd were present. Director Doug Faulkner sent his regrets. New board members Mike Henwood, Christy Carello, and Peter Burke were greeted and welcomed by all. Secretary’s Report—Larry Mode- in Colorado Birds in such a way as to sitt. Directors approved the minutes be of broad interest to birders in Colo- of the 13 April 2013 board meeting rado. He also affirmed the importance and the 18 May Annual Meeting, of balancing scientific contributions with minor corrections. and more “popular” content like the “The Hungry Birder” and CFO mem- Treasurer’s Report—Tom Wil- ber profiles. With Bill Kaempfer’s berding’s report was approved. suggestion, Peter is forming, and will oversee, an editorial board consisting Membership Report—Lisa Ed- of Christy Carello (science), Doug wards reported 499 subscriptions for Faulkner (CBRC), Mike Henwood the April issue. Membership is in- (News from the Field), Christian creasing slightly. Nunes (Photo Editor) and Bill. 2. Planning for the 2014 CFO Items of Business from the Presi- Convention. We thoroughly re- dent—Bill Kaempfer viewed comments and survey results 1. Introduction of new editor of regarding timing of a fall convention, Colorado Birds.
Load more

Recommended publications
  • Life in Cold Book
    The Avian Enigma: “Hibernation” by Common Poorwills (Phalaenoptilus nuttalli) CHRISTOPHER P. WOODS AND R. MARK BRIGHAM University of Regina, Department of Biology, Regina, Saskatchewan, Canada Abstract. Common Poorwills, small nocturnal insectivorous birds found across western North America, are seemingly unique because of their alleged ability to remain torpid for extended periods during winter. We used temperature- sensitive radio transmitters to assess patterns of torpor use at sites in the Sonoran desert of southern Arizona. Poorwills used torpor extensively whenever ambient temperature (Ta) dropped below 10° C, and there was little evidence for ther- moregulation when Ta was above 5° C. During the winter months (December through February), birds remained entirely inactive on 72% of bird-nights, and continuously inactive periods of 10 days or longer were common. The extent of inactivity is similar behaviorally to that of hibernating small mammals. Roost selection, however, facilitated routine passive solar warming, and inactive birds exhibited a regular pattern of arousal on sunny days, followed by reentry into torpor at sunset. We argue that daily arousals are likely an adaptation to the circumstances that characterize surface dormancy. We hypothesize that the re- lationship between Ta and availability of flying insects at night, in combination with unique ecological aspects of arid regions, contributed to the evolution of multiday torpor use by poorwills. Introduction Amongst birds, species in 29 families representing 11 orders have been reported capable of a variety of heterothermic responses (reviewed by McKechnie and Lovegrove 2002). Most birds known to use true torpor are small-bodied special- ized foragers, and hummingbirds are the best studied of these (McNab 2002).
    [Show full text]
  • Volunteers Concerned About Nightjars Citizen Scientists That Participate In
    Volunteers Concerned about Nightjars Citizen scientists that participate in the thousands of programs worldwide are often not professionally trained biologists; however, they possess a desire to contribute their free time to something that they value. Whether uploading species lists into eBird, helping to actively clean and restore wetlands, or venturing into the eve to listen for nightjars, it is understood that a personal sense of fulfillment keeps people engaged in these programs. In particular, Nightjar Network surveyors deserve an even bigger pat on the back for their efforts. For one, conducting evening work can be a bit of a grind. Additionally, seeing the bird is half the fun; so conducting a bird survey where you will likely never see the bird my not seem as satisfying. We assume you all have your own reasons for embarking on your journey with us: Whether you are the rare night owl, you feel a certain fulfillment in the act of volunteering, or you just can’t get enough of birds in the daylight hours that you must grind through the night hours in the hopes of adding one of these awesome birds to your day list! We hope you value your participation and continued support of this program as much as we do. Eleven years of Nightjar Survey Data and What’s to Come 2018 closed out our 11th (!) year conducting nightjar surveys as part of the network. Since its establishment in 2007, over 3,000 survey routes have been conducted by 646 dedicated volunteers throughout the US (Figure 1). Volunteers have included a wide range of concerned citizens from agency biologists to retired school teachers to young students - people who enjoy experiencing the night sounds while contributing to what we know about this unusual group of birds.
    [Show full text]
  • Zoologische Verhandelingen
    Systematic notes on Asian birds. 41. Territorial songs and species-level taxonomy of nightjars of the Caprimulgus macrurus complex, with the description of a new species G. Sangster & F.G. Rozendaal Sangster, G. & F.G. Rozendaal. Systematic notes on Asian birds. 41. Territorial songs and species-level taxonomy of nightjars of the Caprimulgus macrurus complex, with the description of a new species. Zool. Verh. Leiden 350, 26.xi.2004: 7-00.— ISSN 0024-1652/ISBN 90-73239-95-8. George Sangster, Stevenshof 17, 2312 GM Leiden, The Netherlands. (e-mail: [email protected]). Frank G. Rozendaal, Akker 113, 3732 XC De Bilt, The Netherlands. (e-mail: [email protected]). Key words: Caprimulgus macrurus; species limits; taxonomy; geographic variation; vocalizations. The Large-tailed Nightjar Caprimulgus macrurus Horsfield, 1821, complex, as currently recognized, comprises 12 taxa which are grouped into four species based on their territorial songs. However, species limits are based on very small samples of a limited number of taxa in the complex. To further document species limits in the complex, we analysed 109 sound recordings representing all recognized taxa. Principal components analysis suggests the existence of six vocally distinct groups within the complex. Discriminant function analysis assigned 98-100% of individuals correctly to their group. Each of these groups differs diagnosably from all other groups by up to eight vocal characters, and each group is recognizable by ear. We propose to treat these six groups as species based on multiple differences in territorial songs, the lack of intermediate vocal types, the concordance of the geographic distribution of vocal types and morphology-based taxonomic boundaries and the sympatry of two groups in northeastern peninsular India without signs of intergradation.
    [Show full text]
  • Bird Communities of Gambel Oak: a Descriptive Analysis
    United States Department of Agriculture Bird Communities Forest Service Rocky Mountain of Gambel Oak: A Research Station General Technical Report RMRS-GTR-48 Descriptive Analysis March 2000 Andreas Leidolf Michael L. Wolfe Rosemary L. Pendleton Abstract Leidolf, Andreas; Wolfe, Michael L.; Pendleton, Rosemary L. 2000. Bird communities of gambel oak: a descriptive analysis. Gen. Tech. Rep. RMRS-GTR-48. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 30 p. Gambel oak (Quercus gambelii Nutt.) covers 3.75 million hectares (9.3 million acres) of the western United States. This report synthesizes current knowledge on the composition, structure, and habitat relationships of gambel oak avian communities. It lists life history attributes of 183 bird species documented from gambel oak habitats of the western United States. Structural habitat attributes important to bird-habitat relationships are identified, based on 12 independent studies. This report also highlights species of special concern, provides recommendations for monitoring, and gives suggestions for management and future research. Keywords: Avian ecology, bird-habitat relationships, neotropical migrant, oakbrush, oak woodlands, scrub oak, Quercus gambelii, Western United States The Authors ______________________________________ Andreas Leidolf is a Graduate Research Assistant in the Department of Fisheries and Wildlife at Utah State University (USU). He received a B.S. degree in Forestry/Wildlife Management from Mississippi State University in 1995. He is currently completing his M.S. degree in Fisheries and Wildlife ecology at USU. Michael L. Wolfe is a Professor in the Department of Fisheries and Wildlife at USU. He received a B.S. degree in Wildlife Management at Cornell University in 1963 and his doctorate in Forestry/Wildlife Management at the University of Göttingen, Germany, in 1967.
    [Show full text]
  • Print Version of the State of the Birds 2010
    The State of the Birds 2010 Report on Climate Change United States of America In this 2010 State of the Birds report, we consider one of the greatest environmental challenges of our time, climate change. How will the impacts of climate change influence our bird populations and their habitats? Accelerated climate change as a result of human activities is altering the natural world as we know it, diminishing the quality of our environment. This report calls attention to the collective efforts needed to protect nature’s resources for the benefit of people and wildlife. Contents Foreword . .3 Forests. .20 Summary . .4 Bird's-Eye.View . .22 Oceans. .6 Stressors . .25 Coasts. .8 Waterfowl. .26 Arctic .. .. .. .10 Gamebirds.. .27 Islands. .12 Our.Approach. .28 Aridlands. .14 North.Shifts. .29 Wetlands. .16 Addressing. Grasslands. .18 Uncertainty . ..30 Laysan Albatross Chick by Brad Bortner Acknowledgments. ..30 2 This report contains information about birds and their habitats, gives examples of what could happen due to climate change, and Foreword outlines suggested solutions and efforts needed to help address Birds are telling us an important these issues. By following the conservation actions in this State of story about climate change the Birds Climate Change report, together we can help ensure that future generations will enjoy the birds we are working to protect The first State of the Birds report in 2009 revealed troubling today. declines of bird populations in the United States during the last North American Bird Conservation Initiative, U.S. Committee 40 years—a warning signal of the failing health of our ecosystems.
    [Show full text]
  • Black-Backed Woodpecker
    Wyoming(Birding(Bonanza( ( Special(Mission(2013:( Black;backed(Woodpeckers( ! ! ! ( ( Information(Packet( ( >>(uwyo.edu/biodiversity/birding( ! ! ! ! Mission(coordinated(by:! Wyoming!Natural!Diversity!Database!(uwyo.edu/wyndd)! UW!Vertebrate!Collection!(uwyo.edu/biodiversity/vertebrate?museum)! UW!Biodiversity!Institute!(uwyo.edu/biodiversity)! ! Table(of(Contents( ! Wanted Poster . pg. 3 Introduction to the Mission . pg. 4 Photo Guides . pg. 5 Vicinity Map . pg. 6 Observation Form . pg. 7 Species Abstract . pg. 9 ! ! ! ! ! Remember to bird ethically! Follow the link to read the American Birding Association’s Code of Ethics: http://www.aba.org/about/ethics.html! ! ! Page 2! Wyoming Birding Bonanza Special Mission 2013 WANTED: Sightings of the Black-backed Woodpecker This bird species is sought after in the Laramie Peak area in central Wyoming. It has never been seen there before, but because of this species' keen ability to find recently-burned forests to call home, authorities suspect it will appear. This species is petitioned for protection under the Endangered Species Act – we need your help to search for these birds in the Laramie Peak area, and submit your observation data! Adult Male Adult Female Ideal Black-backed Woodpecker Habitat submit your data! Submit observations at ebird.org More information: uwyo.edu/biodiversity/birding Bird Photos courtesy of Glen Tepke (http://www.pbase.com/gtepke/profile) Habitat Photo courtesy of Michael Wickens UW Vertebrate Collection Wyoming Birding Bonanza Special Mission 2013: Black-backed Woodpeckers The Issue: Black-backed Woodpecker (Picoides arcticus) is a large woodpecker that is distributed across the boreal forests of North America. In Wyoming, the species is found in the northwestern corner of the state, and also in the Black Hills.
    [Show full text]
  • Migration of Birds Circular 16
    U.S. Fish and Wildlife Service Migration of Birds Circular 16 Migration of Birds Circular 16 by Frederick C. Lincoln, 1935 revised by Steven R. Peterson, 1979 revised by John L. Zimmerman, 1998 Division of Biology, Kansas State University, Manhattan, KS Associate editor Peter A. Anatasi Illustrated by Bob Hines U.S. FISH & WILDLIFE SERVICE D E R P O A I R R E T T M N EN I T OF THE U.S. Department of the Interior U.S. Fish and Wildlife Service TABLE OF CONTENTS Page PREFACE..............................................................................................................1 INTRODUCTION ................................................................................................2 EARLY IDEAS ABOUT MIGRATION............................................................4 TECHNIQUES FOR STUDYING MIGRATION..........................................6 Direct Observation ....................................................................................6 Aural ............................................................................................................7 Preserved Specimens ................................................................................7 Marking ......................................................................................................7 Radio Tracking ..........................................................................................8 Radar Observation ....................................................................................9 EVOLUTION OF MIGRATION......................................................................10
    [Show full text]
  • Canadian Nightjar Survey Protocol 2018
    Canadian Nightjar Survey Protocol 2018 Canadian Nightjar Survey Protocol – 2018 This protocol is the product of a series of working group meetings held from November 2015 – April 2016. The protocol is adapted from the Nightjar Survey Network protocol from the Center for Conservation Biology. Contributions were made by the following individuals: Allison Manthorne (Bird Studies Canada), Andrea Sidler (University of Regina; WildResearch), Audrey Heagy (Bird Studies Canada), Elly Knight (WildResearch; University of Alberta), Gabriel Foley (University of Regina; WildResearch), Gilles Falardeau (Canadian Wildlife Service), Jon McCracken (Bird Studies Canada), Julie McKnight (Canadian Wildlife Service), Kathy St. Laurent (Canadian Wildlife Service), Kevin Hannah (Canadian Wildlife Service), Mark Brigham (University of Regina), Marie-France Julien (Regroupement QuébecOiseaux), Jean-Sébastien Guénette (Regroupement QuébecOiseaux), Pam Sinclair (Canadian Wildlife Service), Rhiannon Pankratz (Canadia Wildlife Service; WildResearch) This draft was prepared by Elly Knight, with edits from Kevin Hannah, Mark Brigham, Jon McCracken, Gilles Falardeau, Marie-France Julien, and Jean-Sébastien Guénette. The French translation of the protocol was prepared by Kevin Quirion Piorier and Audrey Lauzon. Photo credits: Anne C. Brigham (Common Nighthawk); Alan Burger (Common Poorwill); Nicholas Bertrand (Eastern Whip-poor-will). For more information, contact one of the following: Elly Knight (WildResearch, University of Alberta): [email protected] Kevin Hannah
    [Show full text]
  • 40. Chickadee
    CAREER CONNECTION We have been exploring career MY LITTLE CHICKADEE ideas over the past 2 months. If you missed those issues, you How to Survive the Winter in Colorado Dr. Barbara J. Shaw can find activities 38 and 39 located here: http://tra.extension.colostate.edu/ stem-resources/ Last month, you analyzed the results of the interest survey. The 12 broad interest categories are: Adventure Animals and Nature Art Business Computers Math Music and Dance Science Sports Talking Black-capped Chickadee Audubon Travel Writing BACKGROUND Information Look at your ranking. What are Colorado is home all year long to two species of chickadees: Black- your top 3 or 4 categories? For capped Chickadee and Mountain Chickadee. The Black-capped example, my top 4 would be Chickadee is found everywhere, however the Mountain Chickadee is only Animals and Nature, Math, found in the western half of our state. Science, and Travel. I love my job, and it incorporates all four Both these birds are very small. Mountain Chickadees weigh the same as 4 US cents and Black-capped Chickadees weigh a bit less than 5 US of those interests. I am a cents. In these activities, you will explore the relationship of their size to paleontologist and I travel to the abiotic components (cold temperatures and water access) during our Argentina to collect data on winter months, adding body fat in the fall, and behaviors they use to help how a variety of different them stay warm . ancient mammals walked. Birds have three strategies to survive winter in Colorado and other cold You are going to start exploring climates: what careers combine your 1.
    [Show full text]
  • BC Nightjar Survey Two-Species Protocol
    BC Nightjar Survey Two-Species Protocol Thank you for participating in the WildResearch Nightjar Survey! Overview: Signing up for a BC Nightjar Survey route will require two to three hours of surveying and one hour of data entry: Each route is a series of six road-side stations Each route needs to be surveyed once per year between May 15 and June 30 Starting at 30 minutes before sunset, the six stations are surveyed in one direction Starting at 30 minutes after sunset, the six stations are resurveyed in the opposite direction At each station, you will listen quietly for nightjars for six minutes Anyone with a vehicle and good hearing is capable of conducting a BC Nightjar Survey! Objective: The data you are helping to collect will be used to expand our understanding of populations of Common Poorwills and Common Nighthawks in British Columbia. There is evidence that these two species may be declining, however, relatively little is known about their population trends. The goal of the BC Nightjar Survey is to fill these knowledge gaps, which can only be achieved with the help of dedicated volunteers such as yourself! Benefits: As a volunteer for the BC Nightjar Survey, you will: Learn how to conduct nocturnal road-side surveys Learn how to identify BC’s two species of nightjar Receive an annual newsletter about the results of the BC Nightjar Survey Contribute to the conservation of two unique species! IMPORTANT: WildResearch’s survey protocol has been designed to take the unique behaviour of each species into account. To facilitate this, we have two separate protocols: Two-Species Protocol: for the zone where both Common Poorwill and Common Nighthawks may occur.
    [Show full text]
  • S22-3 Ecological Correlates of Torpor Use Among Five Caprimulgiform Birds
    52(Supplement): 401–404, 2006 Acta Zoologica Sinica S22-3 Ecological correlates of torpor use among five caprimulgiform birds R. Mark BRIGHAM1, Christopher P. WOODS1, Jeffrey E. LANE1, Quinn E. FLETCHER1, Fritz GEISER2 1. Dept. of Biology, University of Regina, Regina, SK S4S 0A2, CANADA; [email protected]; [email protected]; [email protected]; [email protected] 2. Dept. of Zoology, BBMS, University of New England, Armidale, NSW 2351, Australia; [email protected] Abstract We review recent studies of torpor use by free-ranging caprimulgiform birds in North America and Australia: common poorwill (45 g), whip-poor-will (55 g), common nighthawk (80 g), Australian owlet-nightjar (50 g), and Tawny Frogmouth (500 g). Reproductive activity, ambient temperature, body size, and prey abundance influence the energy status of endotherms and may be correlated with torpor use under natural conditions; our review suggests that no one factor is most important. To date, most studies have been correlational in the wild, and experimental studies at multiple locales are now needed to resolve uncertainties concerning the evolutionary and ecological significance of torpor. Key words Torpor, Caprimulgiformes, Ecology, Energetics, Temperature, Foraging torpor bouts typically last several hours, T dropping by 4– 1 Introduction b 35°C and metabolic rate by 5%–90%. “Hibernation” has Endothermy is a process of thermoregulation charac- been anecdotally reported for only one species, the com- terized by a high, controlled rate of heat production which mon poorwill (Jaeger, 1948; 1949). The factors that prompt helps mammals and birds maintain an elevated body tem- birds to use torpor or hibernation, however, remain unclear.
    [Show full text]
  • Whip-Poor-Will Prey Availability and Foraging Habitat: Implications for Management in Pitch Pine / Scrub Oak Barrens Habitats Ross M
    University of Massachusetts Amherst ScholarWorks@UMass Amherst Masters Theses 1911 - February 2014 January 2007 Whip-poor-will Prey Availability and Foraging Habitat: Implications for Management in Pitch Pine / Scrub Oak Barrens Habitats Ross M. Garlapow University of Massachusetts Amherst Follow this and additional works at: https://scholarworks.umass.edu/theses Garlapow, Ross M., "Whip-poor-will Prey Availability and Foraging Habitat: Implications for Management in Pitch Pine / Scrub Oak Barrens Habitats" (2007). Masters Theses 1911 - February 2014. 27. Retrieved from https://scholarworks.umass.edu/theses/27 This thesis is brought to you for free and open access by ScholarWorks@UMass Amherst. It has been accepted for inclusion in Masters Theses 1911 - February 2014 by an authorized administrator of ScholarWorks@UMass Amherst. For more information, please contact [email protected]. WHIP-POOR-WILL PREY AVAILABILITY AND FORAGING HABITAT: IMPLICATIONS FOR MANAGEMENT IN PITCH PINE / SCRUB OAK BARRENS HABITATS A Thesis Presented by Ross M. Garlapow Submitted to the Graduate School of the University of Massachusetts Amherst in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE September 2007 Wildlife and Fisheries Conservation © Copyright by Ross M. Garlapow 2007 All Rights Reserved WHIP-POOR-WILL PREY AVAILABILITY AND FORAGING HABITAT: IMPLICATIONS FOR MANAGEMENT IN PITCH PINE / SCRUB OAK BARRENS HABITATS A Thesis Presented by ROSS M. GARLAPOW Approved as to content by: ____________________________________ David I. King, Chair ____________________________________ Michael A. Ciaranca, Member ____________________________________ Stephen DeStefano, Member ____________________________________ John P. Kelly, Consultant _____________________________________ Matthew J. Kelty, Department Head Natural Resources Conservation ACKNOWLEDGEMENTS I would like to thank everyone on this thesis committee, and everyone that have influenced my personal growth in this field and made this study possible.
    [Show full text]