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												  Why Is the Common Grackle Becoming Less Common? Avian Conservation and Ecology 16(2):7VOLUME 16, ISSUE 2, ARTICLE 7 Horsley, N. P., and M. P. Ward. 2021. Why is the Common Grackle becoming less common? Avian Conservation and Ecology 16(2):7. https://doi. org/10.5751/ACE-01879-160207 Copyright © 2021 by the author(s). Published here under license by the Resilience Alliance. Research Paper Why is the Common Grackle becoming less common? Noah P. Horsley 1 and Michael P. Ward 1,2 1University of Illinois at Urbana-Champaign, 2Illinois Natural History Survey ABSTRACT. Despite a generalist life history and a widespread distribution, the Common Grackle (Quiscalus quiscula) has declined by more than 58% since 1970. In Illinois, where this study was conducted, the current rate of decline is 7.03% annually. We hypothesized that low reproductive success in intensely agricultural areas is driving population decline. To test this, we quantified the nesting success and post-fledging survival of Common Grackles in central Illinois. Over a 2-year period, we monitored 188 nests and tracked the survival of 53 fledglings. Our estimate for nesting success of 0.622 (95% CI: 0.549-0.695) was much higher than the literature average of 0.267. Similarly, although post-fledging survival had not been estimated previously for Common Grackles, our estimate of 0.617 (95% CI: 0.471-0.764) was relatively high compared to that of other songbirds (range: 0.23-0.87). The most important factor influencing these estimates was ordinal date, which had a negative relationship with both nesting success and post-fledging survival. These results suggest that reproductive success is not the primary driver of population decline in Illinois.
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												  The Lesser Antilles Incuding TrinidadThe brilliant Lesser Antillean Barn Owl again showed superbly. One of several potential splits not yet recognized by the IOC (Pete Morris) THE LESSER ANTILLES INCUDING TRINIDAD 5 – 20/25 JUNE 2015 LEADERS: PETE MORRIS After our successful tour around the Caribbean in 2013, it was great to get back again this year. It all seemed pretty straightforward this time around, and once again we cleaned up on all of the available endemics, po- 1 BirdQuest Tour Report:The Lesser Antilles www.birdquest-tours.com The fabulous White-breasted Thrasher from Martinique (Pete Morris) tential splits and other goodies. For sure, this was no ordinary Caribbean holiday! During the first couple of weeks we visited no fewer than ten islands (Antigua, Barbuda, Montserrat, Dominica, Guadeloupe, Martinique, St Lucia, St Vincent, Barbados and Grenada), a logistical feat of some magnitude. With plenty of LIAT flights (the islanders refer to LIAT as ‘Leave Island any Time’ and ‘Luggage in Another Terminal’ to name but two of the many funny phrases coined from LIAT) and unreliable AVIS car hire reservations, we had our work cut out, but in the end, all worked out! It’s always strange birding on islands with so few targets, but with so many islands to pack-in, we were never really short of things to do. All of the endemics showed well and there were some cracking highlights, including the four smart endemic amazons, the rare Grenada Dove, the superb Lesser Antillean Barn Owl, the unique tremblers and White-breasted Thrashers, and a series of colourful endemic orioles to name just a few! At the end of the Lesser Antilles adventure we enjoyed a few days on Trinidad.
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												  Birds of the East Texas Baptist University Campus with Birds Observed Off-Campus During BIOL3400 Field CourseBirds of the East Texas Baptist University Campus with birds observed off-campus during BIOL3400 Field course Photo Credit: Talton Cooper Species Descriptions and Photos by students of BIOL3400 Edited by Troy A. Ladine Photo Credit: Kenneth Anding Links to Tables, Figures, and Species accounts for birds observed during May-term course or winter bird counts. Figure 1. Location of Environmental Studies Area Table. 1. Number of species and number of days observing birds during the field course from 2005 to 2016 and annual statistics. Table 2. Compilation of species observed during May 2005 - 2016 on campus and off-campus. Table 3. Number of days, by year, species have been observed on the campus of ETBU. Table 4. Number of days, by year, species have been observed during the off-campus trips. Table 5. Number of days, by year, species have been observed during a winter count of birds on the Environmental Studies Area of ETBU. Table 6. Species observed from 1 September to 1 October 2009 on the Environmental Studies Area of ETBU. Alphabetical Listing of Birds with authors of accounts and photographers . A Acadian Flycatcher B Anhinga B Belted Kingfisher Alder Flycatcher Bald Eagle Travis W. Sammons American Bittern Shane Kelehan Bewick's Wren Lynlea Hansen Rusty Collier Black Phoebe American Coot Leslie Fletcher Black-throated Blue Warbler Jordan Bartlett Jovana Nieto Jacob Stone American Crow Baltimore Oriole Black Vulture Zane Gruznina Pete Fitzsimmons Jeremy Alexander Darius Roberts George Plumlee Blair Brown Rachel Hastie Janae Wineland Brent Lewis American Goldfinch Barn Swallow Keely Schlabs Kathleen Santanello Katy Gifford Black-and-white Warbler Matthew Armendarez Jordan Brewer Sheridan A.
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												  L O U I S I a N AL O U I S I A N A SPARROWS L O U I S I A N A SPARROWS Written by Bill Fontenot and Richard DeMay Photography by Greg Lavaty and Richard DeMay Designed and Illustrated by Diane K. Baker What is a Sparrow? Generally, sparrows are characterized as New World sparrows belong to the bird small, gray or brown-streaked, conical-billed family Emberizidae. Here in North America, birds that live on or near the ground. The sparrows are divided into 13 genera, which also cryptic blend of gray, white, black, and brown includes the towhees (genus Pipilo), longspurs hues which comprise a typical sparrow’s color (genus Calcarius), juncos (genus Junco), and pattern is the result of tens of thousands of Lark Bunting (genus Calamospiza) – all of sparrow generations living in grassland and which are technically sparrows. Emberizidae is brushland habitats. The triangular or cone- a large family, containing well over 300 species shaped bills inherent to most all sparrow species are perfectly adapted for a life of granivory – of crushing and husking seeds. “Of Louisiana’s 33 recorded sparrows, Sparrows possess well-developed claws on their toes, the evolutionary result of so much time spent on the ground, scratching for seeds only seven species breed here...” through leaf litter and other duff. Additionally, worldwide, 50 of which occur in the United most species incorporate a substantial amount States on a regular basis, and 33 of which have of insect, spider, snail, and other invertebrate been recorded for Louisiana. food items into their diets, especially during Of Louisiana’s 33 recorded sparrows, Opposite page: Bachman Sparrow the spring and summer months.
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												  Wildlife Habitat PlanWILDLIFE HABITAT PLAN City of Novi, Michigan A QUALITY OF LIFE FOR THE 21ST CENTURY WILDLIFE HABITAT PLAN City of Novi, Michigan A QUALIlY OF LIFE FOR THE 21ST CENTURY JUNE 1993 Prepared By: Wildlife Management Services Brandon M. Rogers and Associates, P.C. JCK & Associates, Inc. ii ACKNOWLEDGEMENTS City Council Matthew C. Ouinn, Mayor Hugh C. Crawford, Mayor ProTem Nancy C. Cassis Carol A. Mason Tim Pope Robert D. Schmid Joseph G. Toth Planning Commission Kathleen S. McLallen, * Chairman John P. Balagna, Vice Chairman lodia Richards, Secretary Richard J. Clark Glen Bonaventura Laura J. lorenzo* Robert Mitzel* Timothy Gilberg Robert Taub City Manager Edward F. Kriewall Director of Planning and Community Development James R. Wahl Planning Consultant Team Wildlife Management Services - 640 Starkweather Plymouth, MI. 48170 Kevin Clark, Urban Wildlife Specialist Adrienne Kral, Wildlife Biologist Ashley long, Field Research Assistant Brandon M. Rogers and Associates, P.C. - 20490 Harper Ave. Harper Woods, MI. 48225 Unda C. lemke, RlA, ASLA JCK & Associates, Inc. - 45650 Grand River Ave. Novi, MI. 48374 Susan Tepatti, Water Resources Specialist * Participated with the Planning Consultant Team in developing the study. iii TABLE OF CONTENTS ACKNOWLEDGEMENTS iii PREFACE vii EXECUTIVE SUMMARY viii FRAGMENTATION OF NATURAL RESOURCES " ., , 1 Consequences ............................................ .. 1 Effects Of Forest Fragmentation 2 Edges 2 Reduction of habitat 2 SPECIES SAMPLING TECHNIQUES ................................ .. 3 Methodology 3 Survey Targets ............................................ ., 6 Ranking System ., , 7 Core Reserves . .. 7 Wildlife Movement Corridor .............................. .. 9 FIELD SURVEY RESULTS AND RECOMMENDATIONS , 9 Analysis Results ................................ .. 9 Core Reserves . .. 9 Findings and Recommendations , 9 WALLED LAKE CORE RESERVE - DETAILED STUDy.... .. .... .. .... .. 19 Results and Recommendations ............................... .. 21 GUIDELINES TO ECOLOGICAL LANDSCAPE PLANNING AND WILDLIFE CONSERVATION.
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												  Female Dark-Eyed Juncos Junco Hyemalis Thurberi Produce Male-Like Song in a Territorial Context During the Early Breeding Seasondoi: 10.1111/jav.01566 49 1–6 JOURNAL OF AVIAN BIOLOGY Communications Female dark-eyed juncos Junco hyemalis thurberi produce male-like song in a territorial context during the early breeding season Dustin G. Reichard, Daniel E. Brothers, Serena E. George, Jonathan W. Atwell and Ellen D. Ketterson D. G. Reichard (http://orcid.org/0000-0002-1219-9219) ([email protected]), D. E. Brothers, S. E. George, Dept of Zoology, Ohio Wesleyan Univ., Delaware, OH, USA. – J. W. Atwell and E. D. Ketterson, Dept of Biology, Indiana Univ., Bloomington, IN, USA. Journal of Avian Biology Reports of female song, once considered a rarity, have recently increased across a 2018: e01566 variety of avian taxa. Females of many species can be induced to produce male-like doi: 10.1111/jav.01566 song with exogenous testosterone, but observations of female song in free-living birds remain limited by incomplete sampling of females. Here, we report three independent Subject Editor: Simon Griffith observations of female dark-eyed juncos Junco hyemalis producing male-like song early Editor-in-Chief: Thomas Alerstam in the breeding season (i.e. post-territory establishment, pre-nesting) in a recently Accepted 18 October 2017 established non-migratory, urban population. To elicit song, we presented 17 free-living junco pairs with a live, caged female conspecific. Three unique females responded to our trials by diving at the intruding female, chasing their (male) mate, fanning their tail feathers, and singing a trilled song similar in structure to male long-range (broadcast) song. We compared male and female songs quantitatively and found that the two sexes were statistically similar in many spectral and temporal characteristics, but female songs had significantly lower minimum and peak frequencies than males.
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												  Predation on Vertebrates by Neotropical Passerine Birds Leonardo ELundiana 6(1):57-66, 2005 © 2005 Instituto de Ciências Biológicas - UFMG ISSN 1676-6180 Predation on vertebrates by Neotropical passerine birds Leonardo E. Lopes1,2, Alexandre M. Fernandes1,3 & Miguel Â. Marini1,4 1 Depto. de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, 31270-910, Belo Horizonte, MG, Brazil. 2 Current address: Lab. de Ornitologia, Depto. de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, 31270-910, Belo Horizonte, MG, Brazil. E-mail: [email protected]. 3 Current address: Coleções Zoológicas, Aves, Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, INPA II, 69083-000, Manaus, AM, Brazil. E-mail: [email protected]. 4 Current address: Lab. de Ornitologia, Depto. de Zoologia, Instituto de Biologia, Universidade de Brasília, 70910-900, Brasília, DF, Brazil. E-mail: [email protected] Abstract We investigated if passerine birds act as important predators of small vertebrates within the Neotropics. We surveyed published studies on bird diets, and information on labels of museum specimens, compiling data on the contents of 5,221 stomachs. Eighteen samples (0.3%) presented evidence of predation on vertebrates. Our bibliographic survey also provided records of 203 passerine species preying upon vertebrates, mainly frogs and lizards. Our data suggest that vertebrate predation by passerines is relatively uncommon in the Neotropics and not characteristic of any family. On the other hand, although rare, the ability to prey on vertebrates seems to be widely distributed among Neotropical passerines, which may respond opportunistically to the stimulus of a potential food item.
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												  Artificial Water Catchments Influence Wildlife Distribution in the MojaveThe Journal of Wildlife Management; DOI: 10.1002/jwmg.21654 Research Article Artificial Water Catchments Influence Wildlife Distribution in the Mojave Desert LINDSEY N. RICH,1,2 Department of Environmental Science, Policy, and Management, University of California- Berkeley, 130 Mulford Hall 3114, Berkeley, CA 94720, USA STEVEN R. BEISSINGER, Department of Environmental Science, Policy, and Management, University of California- Berkeley, 130 Mulford Hall 3114, Berkeley, CA 94720, USA JUSTIN S. BRASHARES, Department of Environmental Science, Policy, and Management, University of California- Berkeley, 130 Mulford Hall 3114, Berkeley, CA 94720, USA BRETT J. FURNAS, Wildlife Investigations Laboratory, California Department of Fish and Wildlife, Rancho Cordova, CA 95670, USA ABSTRACT Water often limits the distribution and productivity of wildlife in arid environments. Consequently, resource managers have constructed artificial water catchments (AWCs) in deserts of the southwestern United States, assuming that additional free water benefits wildlife. We tested this assumption by using data from acoustic and camera trap surveys to determine whether AWCs influenced the distributions of terrestrial mammals (>0.5 kg), birds, and bats in the Mojave Desert, California, USA. We sampled 200 sites in 2016–2017 using camera traps and acoustic recording units, 52 of which had AWCs. We identified detections to the species-level, and modeled occupancy for each of the 44 species of wildlife photographed or recorded. Artificial water catchments explained spatial variation in occupancy for 8 terrestrial mammals, 4 bats, and 18 bird species. Occupancy of 18 species was strongly and positively associated with AWCs, whereas 1 species (i.e., horned lark [Eremophila alpestris]) was negatively associated. Access to an AWC had a larger influence on species’ distributions than precipitation and slope and was nearly as influential as temperature.
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												  The Best of Costa Rica March 19–31, 2019THE BEST OF COSTA RICA MARCH 19–31, 2019 Buffy-crowned Wood-Partridge © David Ascanio LEADERS: DAVID ASCANIO & MAURICIO CHINCHILLA LIST COMPILED BY: DAVID ASCANIO VICTOR EMANUEL NATURE TOURS, INC. 2525 WALLINGWOOD DRIVE, SUITE 1003 AUSTIN, TEXAS 78746 WWW.VENTBIRD.COM THE BEST OF COSTA RICA March 19–31, 2019 By David Ascanio Photo album: https://www.flickr.com/photos/davidascanio/albums/72157706650233041 It’s about 02:00 AM in San José, and we are listening to the widespread and ubiquitous Clay-colored Robin singing outside our hotel windows. Yet, it was still too early to experience the real explosion of bird song, which usually happens after dawn. Then, after 05:30 AM, the chorus started when a vocal Great Kiskadee broke the morning silence, followed by the scratchy notes of two Hoffmann´s Woodpeckers, a nesting pair of Inca Doves, the ascending and monotonous song of the Yellow-bellied Elaenia, and the cacophony of an (apparently!) engaged pair of Rufous-naped Wrens. This was indeed a warm welcome to magical Costa Rica! To complement the first morning of birding, two boreal migrants, Baltimore Orioles and a Tennessee Warbler, joined the bird feast just outside the hotel area. Broad-billed Motmot . Photo: D. Ascanio © Victor Emanuel Nature Tours 2 The Best of Costa Rica, 2019 After breakfast, we drove towards the volcanic ring of Costa Rica. Circling the slope of Poas volcano, we eventually reached the inspiring Bosque de Paz. With its hummingbird feeders and trails transecting a beautiful moss-covered forest, this lodge offered us the opportunity to see one of Costa Rica´s most difficult-to-see Grallaridae, the Scaled Antpitta.
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												  A Field Guide Introduction Welcome! As Avid Birders from Penn State University, We Are Happy You Have an Interest in Learning More About BirdsBirds of Pennsylvania A Field Guide Introduction Welcome! As avid birders from Penn State University, we are happy you have an interest in learning more about birds. The following field guide is similar to the ones used by ornithologists (professional birders!) to identify the birds they see in the field. If you read a word in the field guide that you don’t understand, come back to this page to read about what it means, or ask a bird loving adult. Have fun! Glossary Scientific Name – This is the Latin name for a bird. It is useful when talking about a bird with someone who is not from our area, and may know it by a different name. Habitat – This is a description of the area that a bird likes to live in. It may include plant types, temperatures, and other things the bird may need to survive. Diet – This includes the types of food that a bird eats. Some eat mostly insects, while others prefer fruit. Range – The range of a bird is the area of the world where a species of bird lives. It is also shown on a map in this field guide. Migration – This is the journey that most birds take every year, where they fly south during the winter to escape the cold and fly north during the summer to breed and lay eggs. Plumage – This is another word for feathers! Parts of a Bird Bill Forehead Nape Throat Wing Rump Tail Breast Northern Flicker Scientific Name: Colaptes auratus Habitat: Northern Flickers are often found in woodlands, forest edges and open fields with scattered trees.
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												  Collation of Brisson's Genera of Birds with Those of Linnaeus59. 82:01 Article XXVII. COLLATION OF BRISSON'S GENERA OF BIRDS WITH THOSE OF LINNAEUS. BY J. A. ALLEN. CONTENTS. Page. Introduction ....................... 317 Brisson not greatly indebted to Linnaeus. 319 Linneus's indebtedness to Brisson .... .. ... .. 320 Brisson's methods and resources . .. 320 Brisson's genera . 322 Brisson and Linnaeus statistically compared .. .. .. 324 Brisson's 'Ornithologia' compared with the Aves of the tenth edition of Lin- naeus's 'Systema'. 325 Brisson's new genera and their Linnwan equivalents . 327 Brisson's new names for Linnaan genera . 330 Linnaean (1764 and 1766) new names for Brissonian genera . 330 Brissonian names adopted. by Linnaeus . 330 Brissonian names wrongly ascribed to other authors in Sharpe's 'Handlist of Birds'.330 The relation of six Brissonian genera to Linnlean genera . 332 Mergus Linn. and Merganser Briss. 332 Meleagris Linn. and Gallopavo Briss. 332 Alcedo Linn. and Ispida Briss... .. 332 Cotinga Briss. and Ampelis Linn. .. 333 Coracias Linn. and Galgulus Briss.. 333 Tangara Briss. and Tanagra Linn... ... 334 INTRODUCTION. In considering recently certain questions of ornithological nomenclature it became necessary to examine the works of Brisson and Linnaeus in con- siderable detail and this-examination finally led to a careful collation of Brisson's 'Ornithologia,' published in 1760, with the sixth, tenth, and twelfth editions of Linnaeus's 'Systema Naturae,' published respectively in 1748, 1758, and 1766. As every systematic ornithologist has had occasion to learn, Linnaeus's treatment of the class Aves was based on very imperfect knowledge of the suabject. As is well-known, this great systematist was primarily a botanist, secondarily a zoologist, and only incidentally a mammalogist and ornithol- ogist.
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												  Aberrant Plumages in Grebes PodicipedidaeAndré Konter Aberrant plumages in grebes Podicipedidae An analysis of albinism, leucism, brown and other aberrations in all grebe species worldwide Aberrant plumages in grebes Podicipedidae in grebes plumages Aberrant Ferrantia André Konter Travaux scientifiques du Musée national d'histoire naturelle Luxembourg www.mnhn.lu 72 2015 Ferrantia 72 2015 2015 72 Ferrantia est une revue publiée à intervalles non réguliers par le Musée national d’histoire naturelle à Luxembourg. Elle fait suite, avec la même tomaison, aux TRAVAUX SCIENTIFIQUES DU MUSÉE NATIONAL D’HISTOIRE NATURELLE DE LUXEMBOURG parus entre 1981 et 1999. Comité de rédaction: Eric Buttini Guy Colling Edmée Engel Thierry Helminger Mise en page: Romain Bei Design: Thierry Helminger Prix du volume: 15 € Rédaction: Échange: Musée national d’histoire naturelle Exchange MNHN Rédaction Ferrantia c/o Musée national d’histoire naturelle 25, rue Münster 25, rue Münster L-2160 Luxembourg L-2160 Luxembourg Tél +352 46 22 33 - 1 Tél +352 46 22 33 - 1 Fax +352 46 38 48 Fax +352 46 38 48 Internet: http://www.mnhn.lu/ferrantia/ Internet: http://www.mnhn.lu/ferrantia/exchange email: [email protected] email: [email protected] Page de couverture: 1. Great Crested Grebe, Lake IJssel, Netherlands, April 2002 (PCRcr200303303), photo A. Konter. 2. Red-necked Grebe, Tunkwa Lake, British Columbia, Canada, 2006 (PGRho200501022), photo K. T. Karlson. 3. Great Crested Grebe, Rotterdam-IJsselmonde, Netherlands, August 2006 (PCRcr200602012), photo C. van Rijswik. Citation: André Konter 2015. - Aberrant plumages in grebes Podicipedidae - An analysis of albinism, leucism, brown and other aberrations in all grebe species worldwide. Ferrantia 72, Musée national d’histoire naturelle, Luxembourg, 206 p.