2012. Florida Scrub-Jay (Aphelocoma Coerulescens)
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Crows and Ravens Wildlife Notes
12. Crows & Ravens Crows and ravens belong to the large family Corvidae, along with more than 200 other species including jays, nutcrackers and magpies. These less-than-melodious birds, you may be surprised to learn, are classified as songbirds. raven American Crow insects, grain, fruit, the eggs and young of other birds, Crows are some of the most conspicuous and best known organic garbage and just about anything that they can find of all birds. They are intelligent, wary and adapt well to or overpower. Crows also feed on the carcasses of winter – human activity. As with most other wildlife species, crows and road-killed animals. are considered to have “good” points and “bad” ones— value judgements made strictly by humans. They are found Crows have extremely keen senses of sight and hearing. in all 50 states and parts of Canada and Mexico. They are wary and usually post sentries while they feed. Sentry birds watch for danger, ready to alert the feeding birds with a sharp alarm caw. Once aloft, crows fly at 25 Biology to 30 mph. If a strong tail wind is present, they can hit 60 Also known as the common crow, an adult American mph. These skillful fliers have a large repertoire of moves crow weighs about 20 ounces. Its body length is 15 to 18 designed to throw off airborne predators. inches and its wings span up to three feet. Both males Crows are relatively gregarious. Throughout most of the and females are black from their beaks to the tips of their year, they flock in groups ranging from family units to tails. -
Cyanocitta Stelleri)
MOBBING BEHAVIOR IN WILD STELLER’S JAYS (CYANOCITTA STELLERI) By Kelly Anne Commons A Thesis Presented to The Faculty of Humboldt State University In Partial Fulfillment of the Requirements for the Degree Master of Science in Natural Resources: Wildlife Committee Membership Dr. Jeffrey M. Black, Committee Chair Dr. Barbara Clucas, Committee Member Dr. Micaela Szykman Gunther, Committee Member Dr. Alison O’Dowd, Graduate Coordinator December 2017 ABSTRACT MOBBING BEHAVIOR IN WILD STELLER’S JAYS (CYANOCITTA STELLERI) Kelly Anne Commons Mobbing is a widespread anti-predator behavior with multifaceted functions. Mobbing behavior has been found to differ with respect to many individual, group, and encounter level factors. To better understand the factors that influence mobbing behavior in wild Steller’s jays (Cyanocitta stelleri), I induced mobbing behavior using 3 predator mounts: a great horned owl (Bubo virginianus), common raven (Corvus corax), and sharp-shinned hawk (Accipiter cooperii). I observed 90 responses to mock predators by 33 color-marked individuals and found that jays varied in their attendance at mobbing trials, their alarm calling behavior, and in their close approaches toward the predator mounts. In general, younger, larger jays, that had low prior site use and did not own the territory they were on, attended mobbing trials for less time and participated in mobbing less often, but closely approached the predator more often and for more time than older, smaller jays, that had high prior site use and owned the territory they were on. By understanding the factors that affect variation in Steller’s jay mobbing behavior, we can begin to study how this variation might relate to the function of mobbing in this species. -
Walker Marzluff 2017 Recreation Changes Lanscape Use of Corvids
Recreation changes the use of a wild landscape by corvids Author(s): Lauren E. Walker and John M. Marzluff Source: The Condor, 117(2):262-283. Published By: Cooper Ornithological Society https://doi.org/10.1650/CONDOR-14-169.1 URL: http://www.bioone.org/doi/full/10.1650/CONDOR-14-169.1 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Volume 117, 2015, pp. 262–283 DOI: 10.1650/CONDOR-14-169.1 RESEARCH ARTICLE Recreation changes the use of a wild landscape by corvids Lauren E. Walker* and John M. Marzluff College of the Environment, School of Environmental and Forest Sciences, University of Washington, Seattle, Washington, USA * Corresponding author: [email protected] Submitted October 24, 2014; Accepted February 13, 2015; Published May 6, 2015 ABSTRACT As urban areas have grown in population, use of nearby natural areas for outdoor recreation has also increased, potentially influencing bird distribution in landscapes managed for conservation. -
A Fossil Scrub-Jay Supports a Recent Systematic Decision
THE CONDOR A JOURNAL OF AVIAN BIOLOGY Volume 98 Number 4 November 1996 .L The Condor 98~575-680 * +A. 0 The Cooper Omithological Society 1996 g ’ b.1 ;,. ’ ’ “I\), / *rs‘ A FOSSIL SCRUB-JAY SUPPORTS A”kECENT ’ js.< SYSTEMATIC DECISION’ . :. ” , ., f .. STEVEN D. EMSLIE : +, “, ., ! ’ Department of Sciences,Western State College,Gunnison, CO 81231, ._ e-mail: [email protected] Abstract. Nine fossil premaxillae and mandibles of the Florida Scrub-Jay(Aphelocoma coerulescens)are reported from a late Pliocene sinkhole deposit at Inglis 1A, Citrus County, Florida. Vertebrate biochronologyplaces the site within the latestPliocene (2.0 to 1.6 million yearsago, Ma) and more specificallyat 2.0 l-l .87 Ma. The fossilsare similar in morphology to living Florida Scrub-Jaysin showing a relatively shorter and broader bill compared to western species,a presumed derived characterfor the Florida species.The recent elevation of the Florida Scrub-Jayto speciesrank is supported by these fossils by documenting the antiquity of the speciesand its distinct bill morphology in Florida. Key words: Florida; Scrub-Jay;fossil; late Pliocene. INTRODUCTION represent the earliest fossil occurrenceof the ge- nus Aphelocomaand provide additional support Recently, the Florida Scrub-Jay (Aphelocoma for the recognition ofA. coerulescensas a distinct, coerulescens) has been elevated to speciesrank endemic specieswith a long fossil history in Flor- with the Island Scrub-Jay(A. insularis) from Santa ida. This record also supports the hypothesis of Cruz Island, California, and the Western Scrub- Pitelka (195 1) that living speciesof Aphefocoma Jay (A. californica) in the western U. S. and Mex- arose in the Pliocene. ico (AOU 1995). -
Lyonia Preserve Plant Checklist
Lyonia Preserve Plant Checklist Volusia County, Florida Aceraceae (Maple) Asteraceae (Aster) Red Maple Acer rubrum Bitterweed Helenium amarum Blackroot Pterocaulon virgatum Agavaceae (Yucca) Blazing Star Liatris sp. Adam's Needle Yucca filamentosa Blazing Star Liatris tenuifolia Nolina Nolina brittoniana Camphorweed Heterotheca subaxillaris Spanish Bayonet Yucca aloifolia Cudweed Gnaphalium falcatum Dog Fennel Eupatorium capillifolium Amaranthaceae (Amaranth) Dwarf Horseweed Conyza candensis Cottonweed Froelichia floridana False Dandelion Pyrrhopappus carolinianus Fireweed Erechtites hieracifolia Anacardiaceae (Cashew) Garberia Garberia heterophylla Winged Sumac Rhus copallina Goldenaster Pityopsis graminifolia Goldenrod Solidago chapmanii Annonaceae (Custard Apple) Goldenrod Solidago fistulosa Flag Paw paw Asimina obovata Goldenrod Solidago spp. Mohr's Throughwort Eupatorium mohrii Apiaceae (Celery) Ragweed Ambrosia artemisiifolia Dollarweed Hydrocotyle sp. Saltbush Baccharis halimifolia Spanish Needles Bidens alba Apocynaceae (Dogbane) Wild Lettuce Lactuca graminifolia Periwinkle Catharathus roseus Brassicaceae (Mustard) Aquifoliaceae (Holly) Poorman's Pepper Lepidium virginicum Gallberry Ilex glabra Sand Holly Ilex ambigua Bromeliaceae (Airplant) Scrub Holly Ilex opaca var. arenicola Ball Moss Tillandsia recurvata Spanish Moss Tillandsia usneoides Arecaceae (Palm) Saw Palmetto Serenoa repens Cactaceae (Cactus) Scrub Palmetto Sabal etonia Prickly Pear Opuntia humifusa Asclepiadaceae (Milkweed) Caesalpinceae Butterfly Weed Asclepias -
Reconstructing the Geographic Origin of the New World Jays
Neotropical Biodiversity ISSN: (Print) 2376-6808 (Online) Journal homepage: http://www.tandfonline.com/loi/tneo20 Reconstructing the geographic origin of the New World jays Sumudu W. Fernando, A. Townsend Peterson & Shou-Hsien Li To cite this article: Sumudu W. Fernando, A. Townsend Peterson & Shou-Hsien Li (2017) Reconstructing the geographic origin of the New World jays, Neotropical Biodiversity, 3:1, 80-92, DOI: 10.1080/23766808.2017.1296751 To link to this article: https://doi.org/10.1080/23766808.2017.1296751 © 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group Published online: 05 Mar 2017. Submit your article to this journal Article views: 956 View Crossmark data Citing articles: 2 View citing articles Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=tneo20 Neotropical Biodiversity, 2017 Vol. 3, No. 1, 80–92, https://doi.org/10.1080/23766808.2017.1296751 Reconstructing the geographic origin of the New World jays Sumudu W. Fernandoa* , A. Townsend Petersona and Shou-Hsien Lib aBiodiversity Institute and Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS, USA; bDepartment of Life Science, National Taiwan Normal University, Taipei, Taiwan (Received 23 August 2016; accepted 15 February 2017) We conducted a biogeographic analysis based on a dense phylogenetic hypothesis for the early branches of corvids, to assess geographic origin of the New World jay (NWJ) clade. We produced a multilocus phylogeny from sequences of three nuclear introns and three mitochondrial genes and included at least one species from each NWJ genus and 29 species representing the rest of the five corvid subfamilies in the analysis. -
Passerines: Perching Birds
3.9 Orders 9: Passerines – perching birds - Atlas of Birds uncorrected proofs 3.9 Atlas of Birds - Uncorrected proofs Copyrighted Material Passerines: Perching Birds he Passeriformes is by far the largest order of birds, comprising close to 6,000 P Size of order Cardinal virtues Insect-eating voyager Multi-purpose passerine Tspecies. Known loosely as “perching birds”, its members differ from other Number of species in order The Northern or Common Cardinal (Cardinalis cardinalis) The Common Redstart (Phoenicurus phoenicurus) was The Common Magpie (Pica pica) belongs to the crow family orders in various fine anatomical details, and are themselves divided into suborders. Percentage of total bird species belongs to the cardinal family (Cardinalidae) of passerines. once thought to be a member of the thrush family (Corvidae), which includes many of the larger passerines. In simple terms, however, and with a few exceptions, passerines can be described Like the various tanagers, grosbeaks and other members (Turdidae), but is now known to belong to the Old World Like many crows, it is a generalist, with a robust bill adapted of this diverse group, it has a thick, strong bill adapted to flycatchers (Muscicapidae). Its narrow bill is adapted to to feeding on anything from small animals to eggs, carrion, as small birds that sing. feeding on seeds and fruit. Males, from whose vivid red eating insects, and like many insect-eaters that breed in insects, and grain. Crows are among the most intelligent of The word passerine derives from the Latin passer, for sparrow, and indeed a sparrow plumage the family is named, are much more colourful northern Europe and Asia, this species migrates to Sub- birds, and this species is the only non-mammal ever to have is a typical passerine. -
The Vocal Behavior of the American Crow, Corvus Brachyrhynchos
THE VOCAL BEHAVIOR OF THE AMERICAN CROW, CORVUS BRACHYRHYNCHOS THESIS Presented in Partial Fulfillment of the Requirements for the Degree Master of Sciences in the Graduate School of The Ohio State University By Robin Tarter, B.S. ***** The Ohio State University 2008 Masters Examination Committee Approved by Dr. Douglas Nelson, Advisor Dr. Mitch Masters _________________________________ Dr. Jill Soha Advisor Evolution, Ecology and Organismal Biology Graduate Program ABSTRACT The objective of this study was to provide an overview of the vocal behavior of the American crow, Corvus brachyrhynchos, and to thereby address questions about the evolutionary significance of crow behavior. I recorded the calls of 71 birds of known sex and age in a family context. Sorting calls by their acoustic characteristics and behavioral contexts, I identified and hypothesized functions for 7 adult and 2 juvenile call types, and in several cases found preferential use of a call type by birds of a particular sex or breeding status. My findings enrich our understanding of crow social behavior. I found that helpers and breeders played different roles in foraging and in protecting family territories from other crows and from predators. My findings may also be useful for human management of crow populations, particularly dispersal attempts using playbacks of crows’ own vocalizations. ii ACKNOWLEDGEMENTS I would like to thank Dr. Kevin McGowan of Cornell, Dr. Anne Clark of Binghamton University, and Binghamton graduate student Rebecca Heiss for allowing me to work with their study animals. McGowan, Clark and Heiss shared their data with me, along with huge amounts of information and insight about crow behavior. -
Home Range and Habitat Use of Breeding Common Ravens (Corvus
HOME RANGE AND HABITAT USE OF BREEDING COMMON RAVENS IN REDWOOD NATIONAL AND STATE PARKS by Amy Leigh Scarpignato A Thesis Presented to The Faculty of Humboldt State University In Partial Fulfillment Of the Requirements for the Degree Masters of Science In Natural Resources: Wildlife August, 2011 ABSTRACT Home range and habitat use of breeding Common Ravens in Redwood National and State Parks Amy Scarpignato Very little is known about home range and habitat use of breeding Common Ravens (Corvus corax) in Redwood National and State Parks (RNSP) despite their identification as nest predators of the Marbled Murrelet (Brachyramphus marmoratus). I used radio telemetry to examine home range, habitat use, and foraging behavior of breeding Common Ravens in RNSP during 2009 (n = 3) and 2010 (n = 8). I estimated home range and core-use area size, calculated home range overlap between adjacent ravens, and quantified site fidelity by calculating overlap between years for the same individuals. I used Resource Utilization Functions (RUFs) to examine raven resource use within the home range. Average home range size of ravens in RNSP was 182.5 ha (range 82-381 ha) and average core-use area was 31.4 ha (range 5-71 ha). The most supported habitat use models were the global and human models followed by the old-growth model. All beta coefficients in models of individual birds differed from zero suggesting that the variables in the models had a strong influence on home range use. Home range use of individual ravens was generally higher near roads (n = 6), old-growth edge (n = 7), bare ground (n = 6), and in mixed hardwood (n = 5) and prairie habitats (n = 5). -
Observations of Scrub Jays Cleaning Ectoparasites from Black-Tailed Deer
SHORT COMMUNICATIONS 145 includingone inside a nestcavity. Six other islandsshowed penetrated in the present study, however, suggeststhat no indication of abnormally low nestingsuccess, and were ermine are quite capable of reaching coastal islands in probably not visited by ermine. years when their populations are high, and that such in- The major effects of ermine on guillemot breeding ap- vasionsmay be more frequent than the paucity of records pearedto be discouragementof egg-layingand a reduction suggests. of hatching successdue to nest abandonment. Many cav- ities on Black, Yellow, and Green islands which were oc- I thank W. Cairns, V. Friesen and H. Kaiser for field cupied in previous years were not used in 1983. Eggslaid assistance,and A. J. Gaston, M. B. Fenton and P. Ewins on islands where ermine presencewas confirmed or sug- for commenting on the manuscript. This study was sup- gestedwere often displacedfrom the nest cup and lacked ported by the Canadian Department of Supply and Ser- the shiny appearancewhich is normal for regularly incu- vices and the Canadian Wildlife Service. bated eggs(pers. observ.). Guillemots may have been re- LITERATURE CITED luctant to enter their nests if they had seen an ermine in the colony, which would explain the reductionin both egg- BANFIELD,A. W. F. 1974. The mammals of Canada. laying and hatching. Univ. of Toronto Press. Ermine visited islands as far as 1.6 km from the main- BIANIU,V. V. 1967. Gulls, shorebirdsand alcids of Kan- land (Pitsulak City), and may have reached Kingituayu dalaksha Bay. Israel Program for Scientific Transla- Island as well (2.2 km). -
Distribution Habitat and Social Organization of the Florida Scrub Jay
DISTRIBUTION, HABITAT, AND SOCIAL ORGANIZATION OF THE FLORIDA SCRUB JAY, WITH A DISCUSSION OF THE EVOLUTION OF COOPERATIVE BREEDING IN NEW WORLD JAYS BY JEFFREY A. COX A DISSERTATION PRESENTED TO THE GRADUATE COUNCIL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY UNIVERSITY OF FLORIDA 1984 To my wife, Cristy Ann ACKNOWLEDGEMENTS I thank, the following people who provided information on the distribution of Florida Scrub Jays or other forms of assistance: K, Alvarez, M. Allen, P. C. Anderson, T. H. Below, C. W. Biggs, B. B. Black, M. C. Bowman, R. J. Brady, D. R. Breininger, G. Bretz, D. Brigham, P. Brodkorb, J. Brooks, M. Brothers, R. Brown, M. R. Browning, S. Burr, B. S. Burton, P. Carrington, K. Cars tens, S. L. Cawley, Mrs. T. S. Christensen, E. S. Clark, J. L. Clutts, A. Conner, W. Courser, J. Cox, R. Crawford, H. Gruickshank, E, Cutlip, J. Cutlip, R. Delotelle, M. DeRonde, C. Dickard, W. and H. Dowling, T. Engstrom, S. B. Fickett, J. W. Fitzpatrick, K. Forrest, D. Freeman, D. D. Fulghura, K. L. Garrett, G. Geanangel, W. George, T. Gilbert, D. Goodwin, J. Greene, S. A. Grimes, W. Hale, F. Hames, J. Hanvey, F. W. Harden, J. W. Hardy, G. B. Hemingway, Jr., 0. Hewitt, B. Humphreys, A. D. Jacobberger, A. F. Johnson, J. B. Johnson, H. W. Kale II, L. Kiff, J. N. Layne, R. Lee, R. Loftin, F. E. Lohrer, J. Loughlin, the late C. R. Mason, J. McKinlay, J. R. Miller, R. R. Miller, B. -
Pecos National Historical Park Bird Checklist
National Park Service U.S. Department of the Interior Southern Plains Inventory & Monitoring Network Natural Resource Stewardship and Science Pecos National Historical Park Bird Checklist EXPERIENCE YOUR AMERICATM Pecos National Historical Park sits at a cultural crossroads in north-central New Mexico where 12,000 years of human history record the interactions of people in a gateway between the Great Plains and the Rio Grande Valley. The park is located in a broad rolling valley at the southern end of the Southern Rocky Mountains. It contains a diverse array of bird habitats, including grassland, pinyon-juniper woodland, ponderosa pine woodland, and mixed conifer forests, with cottonwoods, willows, and other riparian vegetation growing along the Pecos River and Glorieta Creek. At least 148 different species of birds have been documented in the park. The main Pecos unit of the park contains the the Pecos Pueblo and Spanish mission as well as Forked Lightning Ranch, a 1900s-era ranch that tells the story of the area’s history of cattle ranching. The smaller Glorieta unit interprets the Battle of Glorieta Pass during the Civil War. Pinyon-juniper woodland is the most common habitat type found in the park. Look for Woodhouse’s Scrub-Jays, Pinyon Jays, Western Bluebirds, Juniper Titmice, and Spotted Towhees amongst the pinyon pines and oneseed junipers. Steller’s Jay, Clark’s Nutcrackers, chickadees, nuthatches, and Hairy and Downy Woodpeckers favor ponderosa stands and mixed conifer forests. Grasslands and open pastures host Bewick’s Wren, Northern Mockingbird, Cassin’s Sparrow, Say’s Phoebe, meadowlarks, and kingbirds. Riparian areas provide some of the best bird habitat in Pecos NHP.