Field Guides Birding Tours: Oaxaca
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Widely Distributed Breeding Populations of Canada Warbler (Cardellina Canadensis) Converge on Migration Through Central America A
Roberto-Charron et al. BMC Zoology (2020) 5:10 https://doi.org/10.1186/s40850-020-00056-4 BMC Zoology RESEARCH ARTICLE Open Access Widely distributed breeding populations of Canada warbler (Cardellina canadensis) converge on migration through Central America A. Roberto-Charron1* , J. Kennedy2, L. Reitsma3, J. A. Tremblay4,5, R. Krikun6, K. A. Hobson7, J. Ibarzabal5 and K. C. Fraser1 Abstract Background: To effectively conserve migratory species, the entire range encompassed by their annual life cycle needs to be considered. Most research on Nearctic-Neotropical migratory birds has focused on the breeding grounds resulting in a general lack of knowledge regarding the wintering and migratory periods. The Canada Warbler (Cardellina canadensis) has declined by 71% from 1970 to 2012, at a rate of 2.9% per year, and is listed as Threatened in Canada. As with most Nearctic-Neotropical migrants, conservation efforts outside the breeding range are limited by a poor understanding of migration routes and the connectivity between specific breeding and wintering populations. Results: To determine migratory routes of multiple breeding populations of Canada Warblers, we directly-tracked individuals using light-level geolocators deployed at four sites across the breeding range, spanning approximately 43 degrees in longitude (Alberta, Manitoba and Québec, Canada, and New Hampshire, USA). Twenty-five geolocators with usable data were recovered from three sites and were analyzed using FlightR to determine fall migration routes (n = 18) and individual wintering sites (n = 25). Individuals from all breeding populations took a western fall migration route at the Gulf of Mexico; with 77.8% of birds funnelling into a narrow geographic space along the western side of the Gulf of Mexico (97°W-99°W). -
Martinez Leyva Et Al P 62-70
Proceedings of the Fourth International Partners in Flight Conference: Tundra to Tropics 62–70 DYNAMICS OF PASSERINE MIGRATION IN VERACRUZ, MÉXICO EDUARDO MARTÍNEZ LEYVA,1,4 ERNESTO RUELAS INZUNZA,2 OCTAVIO CRUZ CARRETERO,3 JAMES L. BARR,1 ELISA PERESBARBOSA ROJAS,1 IRVING CHÁVEZ DOMÍNGUEZ,1 GUSTAVO RAMÓN LARA,1 RAFAEL RODRÍGUEZ MESA,1 ALEXALDO GARCÍA MIRANDA,1 AND NORMA FERRIZ DOMÍNGUEZ1 1Pronatura Veracruz, Apartado Postal 399, Xalapa, Veracruz, México 91000; 2Cornell Lab of Ornithology, 159 Sapsucker Woods Road, Ithaca, New York 14850, USA; and 3Envirological Services, Inc., 22 Geer Road, Sandia Park, New Mexico 87047, USA Abstract. The state of Veracruz, along the gulf coast of México, is an important fl yway for Neotropical migrants. Many passerines and other land birds use remnants of native vegetation as stopover sites for shelter and refueling during their migration. We operate a long-term banding station in a coastal forest near the fi shing village of Playa Salinas, in the municipality of Alvarado, with the purpose of studying patterns of spring migration. After nine seasons of mist-netting and banding, we recorded 77 species of birds using this site as regular northward transients and have banded nearly 1000 individuals per season. The majority of the records (41.9% of the total), are from six species: Least Flycatcher (Empidonax minimus), Yellow Warbler (Dendroica petechia), Swainson’s Thrush (Catharus ustulatus), Gray Catbird (Dumetella carolinensis), Yellow-breasted Chat (Icteria virens), and Wilson’s Warbler (Wilsonia pusilla). We provide some notes on the timing of their migration and annual capture rates. Multiple-year recaptures of banded individuals are low (37 individuals of 10 species, from a total of 8479 individuals banded in the period 1999-2007). -
American Redstarts
San Antonio Audubon Society May/June 2021 Newsletter American Redstarts By Mike Scully At the time of this writing (early April), the glorious annual spring migration of songbirds through our area is picking up. Every spring I keep a special eye out for one of my favorite migrants, the American Redstart (Setophaga ruticilla). These beautiful warblers flutter actively through the foliage, tail spread, wings drooped, older males clad in black and orange, females and second year males in shades of gray, olive green and yellow. For years, the American Redstart was the only species remaining in the genus Setophaga, until a comprehensive genetic analysis of the Family Parulidae resulted in this genus being grouped with more than 32 species formerly placed in the genus Dendroica and Wilsonia. The name Setophaga was applied to the whole by virtue of seniority. Though now grouped in a large genus, the American Redstart remains an outlier, possessing proportionately large wings, a long tail, and prominent rictal bristles at the base of the relatively wide flat beak, all adaptations to a flycatching mode of foraging. Relatively heavy thigh musculature and long central front toes are apparently adaptations to springing into the air after flying insects. The foraging strategy of redstarts differs from that of typical flycatchers. Redstarts employ a more warbler-like maneuver, actively moving through the foliage, making typically short sallies after flying insect prey, and opportunistically gleaning insects from twigs and leaves while hovering or perched. The wings are frequently drooped and the colorful tail spread wide in order to flush insect prey. -
A Description of Mixed-Species Insectivorous Bird Flocks in Western Mexico’
The Condor 89~282-292 0 The Cooper Omithologml Society 1987 A DESCRIPTION OF MIXED-SPECIES INSECTIVOROUS BIRD FLOCKS IN WESTERN MEXICO’ RICHARD L. HUTTO Department of Zoology, Universityof Montana, Missoula, MT 59812 Abstract. Insectivorousbird flockswere observed in all typesof forestedhabitats during the nonbreedingseason in westernMexico. The speciescomposition of flockschanged markedlyand predictablyamong five categoriesof habitat type. The averagenumber of speciesper flockin lowlandhabitats was 4.7, while a mean of 18.6 speciesparticipated in highlandflocks, ranking the latter amongthe most species-richflocks in the world. The meanproportion of the localinsectivorous species that participatedin mixed-speciesflocks wassignificantly greater in the highlands(6 1.3%)than in the lowlands(24.6%). About half of the flock participantsin both undisturbedlowland and highlandhabitats were north temperatemigrants, ranking west Mexican flocks among the mostmigrant-rich in the world as well. In highlandflocks, the maximum numberof individualsper attendantspecies was generallytwo to three,but therewere often six to twelveindividuals belonging to eachof severalnuclear species. The lowlanddeciduous forest flocks seemed to lack nuclearspecies. Key words: Mixed-speciesflocks; insectivorousbirds; Mexico; migratory birds;pine-oak woodlands;tropical deciduous forests. INTRODUCTION mixed-speciesflocks in 26 sites(Appendix I) that Mixed-speciesinsectivorous bird flockshave been were distributed among various habitats described from temperate and tropical areas throughout western Mexico. The habitat types worldwide (Rand 1954), and are known to occur that I surveyed can be roughly classified (after in practically every habitat type (Powell 1985). Pesman 1962) as belonging to either lowland Although mixed-species flocks are quite com- (tropical deciduous and tropical evergreen) or mon in north temperate regions during the non- highland (oak, pine-oak, and boreal) forests. -
Bird Species of Flower Garden Banks National Marine Sanctuary
CORAL CAP SPECIES OF FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY Classification Common name Scientific Name Birds Boobies Masked Booby Sula dactylatra Brown Booby Sula leucogaster Cardinals/Grossbeaks Indigo Bunting Passerina cyanea Cuckoos Black-billed Cuckoo Coccyzus erythropthalmus Yellow-billed Cuckoo Coccyzus americanus Doves White-Winged Dove Zenaida asiatica Mourning Dove Zenaida macroura Falcons Merlin Falco columbarius Peregrine falcon Falco peregrinus Osprey Pandion haliaetus Flycatchers Eastern Phoebe Sayornis phoebe Frigate Birds Magnificent Frigate bird Fregata magnificens Gallinules Common Moorhen Gallinula chloropus Purple Gallinule Porphyrula martinica Gulls Laughing Gull Larus atricillia Parasitic Jaeger Stercorarius parasiticus Royal Tern Sterna maxima Herons Great Egret Ardea alba Great Blue Heron Ardea herodias Cattle Egret Bubulcus ibis Green Heron Butorides striatus Hummingbirds Hummingbird sp. Mockingbirds/Thrashers Gray Catbird Dumetella carolinensis Nightjars Common Nighthawk Chordeiles Minor Orioles Baltimore Oriole Icterus galbula Orchard Oriole Icterus spurius Pelicans Brown Pelican Pelecanus occidentalis CORAL CAP SPECIES OF FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY Classification Common name Scientific Name Petrels Wilson's Storm Petrel Oceanites oceanicus Sparrows Sparrow sp. Swallows Barn Swallow Hirundo rustica Cliff Swallow Hirundo pyrrhonota Bank Swallow Riparia riparia Swifts Chimney Swift Chaetura pelagica Tanagers Scarlet Tanager Piranga olivacea Summer Tanager Piranga rubra Teals Blue-winged -
Bird Checklist
Gray-cheeked Thrush Catharus minimus Blackburnian Warbler Dendroica fusca Field Sparrow Spizella pusilla Swainson’s Thrush Catharus ustulatus American Redstart Setophaga ruticilla Swamp Sparrow Melospiza georgiana National Park Service Hermit Thrush Catharus guttatus Pine Warbler Dendroica pinus American Tree Sparrow Spizella arborea U.S. Department of the Interior Veery Catharus fuscescens Prairie Warbler Dendroica discolor Grasshopper Ammodramus savannarum Wood Thrush Hylocichla mustelina Palm Warbler Dendroica palmarum Sparrow New River Gorge National River Blue-winged Warbler Vermivora pinus Fox Sparrow Passeralla iliaca Mockingbird and Thrasher Family Yellow Warbler Dendroica petechia Song Sparrow Melospiza melodia (Mimidae) Swainson’s Warbler Limnothlypis swainsonii Vesper Sparrow Pooecetes gramineus Brown Thrasher Toxostoma rufum Worm-eating Helmitheros vermivorus Savannah Sparrow Passerculus sandwichensis Bird Checklist Gray Catbird Dumetella carolinensis Warbler Dark-eyed (“Slate-colored”) Junco hyemalis Northern Mockingbird Mimus polyglottos Tennessee Warbler Vermivora peregrina Junco Wilson’s Warbler Wilsonia pusilla Crow and Jay Family (Corvidae) Hooded Warbler Wilsonia citrina Blackbird and Oriole Family (Icteridae) Blue Jay Cyanocitta cristata Golden-winged Vermivora chrysoptera Rusty Blackbird Euphagus carolinus American Crow Corvus brachyrhynchos Warbler Common Grackle Quiscalus quiscula Common Raven Corvus corax Nashville Warbler Vermivora ruficapilla Red-winged Blackbird Agelaius phoeniceus Kentucky Warbler Oporornis -
Ecology, Morphology, and Behavior in the New World Wood Warblers
Ecology, Morphology, and Behavior in the New World Wood Warblers A dissertation presented to the faculty of the College of Arts and Sciences of Ohio University In partial fulfillment of the requirements for the degree Doctor of Philosophy Brandan L. Gray August 2019 © 2019 Brandan L. Gray. All Rights Reserved. 2 This dissertation titled Ecology, Morphology, and Behavior in the New World Wood Warblers by BRANDAN L. GRAY has been approved for the Department of Biological Sciences and the College of Arts and Sciences by Donald B. Miles Professor of Biological Sciences Florenz Plassmann Dean, College of Arts and Sciences 3 ABSTRACT GRAY, BRANDAN L., Ph.D., August 2019, Biological Sciences Ecology, Morphology, and Behavior in the New World Wood Warblers Director of Dissertation: Donald B. Miles In a rapidly changing world, species are faced with habitat alteration, changing climate and weather patterns, changing community interactions, novel resources, novel dangers, and a host of other natural and anthropogenic challenges. Conservationists endeavor to understand how changing ecology will impact local populations and local communities so efforts and funds can be allocated to those taxa/ecosystems exhibiting the greatest need. Ecological morphological and functional morphological research form the foundation of our understanding of selection-driven morphological evolution. Studies which identify and describe ecomorphological or functional morphological relationships will improve our fundamental understanding of how taxa respond to ecological selective pressures and will improve our ability to identify and conserve those aspects of nature unable to cope with rapid change. The New World wood warblers (family Parulidae) exhibit extensive taxonomic, behavioral, ecological, and morphological variation. -
Canada Warbler (Cardellina Canadensis): Novel Molecular Markers and a Preliminary Analysis of Genetic Diversity and Structure
VOLUME 13, ISSUE 1, ARTICLE 8 Ferrari, B. A., B. M. Shamblin, R. B. Chandler, H. R. Tumas, S. Hache, L. Reitsma, and C. J. Nairn. 2018. Canada Warbler (Cardellina canadensis): novel molecular markers and a preliminary analysis of genetic diversity and structure. Avian Conservation and Ecology 13(1):8. https://doi. org/10.5751/ACE-01176-130108 Copyright © 2018 by the author(s). Published here under license by the Resilience Alliance. Short Communication Canada Warbler (Cardellina canadensis): novel molecular markers and a preliminary analysis of genetic diversity and structure Brittney A. Ferrari 1, Brian M. Shamblin 1, Richard B. Chandler 1, Hayley R. Tumas 1, Samuel Hache 2, Leonard Reitsma 3 and Campbell J. Nairn 1 1University of Georgia, Warnell School of Forestry and Natural Resources, 2Canadian Wildlife Service, Environment and Climate Change Canada, Yellowknife, NT, Canada, 3Plymouth State University, Biological Sciences ABSTRACT. The effects of predicted declines and potential loss of individual populations on species-level genetic diversity is unclear. A number of taxa, including the Canada Warbler (Cardellina canadensis), share wide-ranging geographic distributions in North American boreal forests with trailing-edge populations extending into the southern Appalachian Mountains. Trailing-edge populations in the southern portion of a species’ ranges often harbor high levels of genetic diversity and unique genetic variants, and may be at risk of extinction from climate change. Climate change and other anthropogenic factors are causing declines in the Canada Warbler’s southern trailing-edge populations, and with no genetic studies to date, the effect on species-level genetic diversity is uncertain. Species- specific microsatellite markers for the Canada Warbler were developed and validated using samples from three populations, including a southern trailing-edge population, to investigate their utility for intraspecific population studies. -
Appendix, French Names, Supplement
685 APPENDIX Part 1. Speciesreported from the A.O.U. Check-list area with insufficient evidencefor placementon the main list. Specieson this list havebeen reported (published) as occurring in the geographicarea coveredby this Check-list.However, their occurrenceis considered hypotheticalfor one of more of the following reasons: 1. Physicalevidence for their presence(e.g., specimen,photograph, video-tape, audio- recording)is lacking,of disputedorigin, or unknown.See the Prefacefor furtherdiscussion. 2. The naturaloccurrence (unrestrained by humans)of the speciesis disputed. 3. An introducedpopulation has failed to becomeestablished. 4. Inclusionin previouseditions of the Check-listwas basedexclusively on recordsfrom Greenland, which is now outside the A.O.U. Check-list area. Phoebastria irrorata (Salvin). Waved Albatross. Diornedeairrorata Salvin, 1883, Proc. Zool. Soc. London, p. 430. (Callao Bay, Peru.) This speciesbreeds on Hood Island in the Galapagosand on Isla de la Plata off Ecuador, and rangesat seaalong the coastsof Ecuadorand Peru. A specimenwas takenjust outside the North American area at Octavia Rocks, Colombia, near the Panama-Colombiaboundary (8 March 1941, R. C. Murphy). There are sight reportsfrom Panama,west of Pitias Bay, Dari6n, 26 February1941 (Ridgely 1976), and southwestof the Pearl Islands,27 September 1964. Also known as GalapagosAlbatross. ThalassarchechrysosWma (Forster). Gray-headed Albatross. Diornedeachrysostorna J. R. Forster,1785, M6m. Math. Phys. Acad. Sci. Paris 10: 571, pl. 14. (voisinagedu cerclepolaire antarctique & dansl'Ocean Pacifique= Isla de los Estados[= StatenIsland], off Tierra del Fuego.) This speciesbreeds on islandsoff CapeHorn, in the SouthAtlantic, in the southernIndian Ocean,and off New Zealand.Reports from Oregon(mouth of the ColumbiaRiver), California (coastnear Golden Gate), and Panama(Bay of Chiriqu0 are unsatisfactory(see A.O.U. -
Delayed Plumage Maturation and the Presumed Prealternate Molt in American Redstarts
WilsonBull., 95(2), 1983, pp. 199-208 DELAYED PLUMAGE MATURATION AND THE PRESUMED PREALTERNATE MOLT IN AMERICAN REDSTARTS SIEVERT ROHWER, WILLIAM P. KLEIN, JR., AND SCOTT HEARD The American Redstart (Setophaga ruticilla) is one of about 30 sexually dichromatic North American passerine species in which males exhibit a delayed plumage maturation (Rohwer et al. 1980). Males in their first win- ter and in their first potential breeding season are largely like females in coloration. These young males have only a few scattered black feathers on their head, hack, and breast, areas where adult males are solid black, and they have yellow rather than the orange patches characteristic of adult males in their wings and tail. Two of four hypotheses reviewed by Rohwer et al. (1980) are relevant to the delay in plumage maturation characteristic of these 30 dichromatic passerine species. Both describe hypothesized best-alternative responses by which young males have minimized their disadvantage in one or both forms of sexual competition. The first, which we here rename, is the Cryptic Hypothesis (CH). Selander (1965) devel- oped this hypothesis by arguing that the costs of a conspicuous breeding plumage would not he repaid in yearling males because of their very lim- ited breeding opportunities. This was called the sexual selection hypoth- esis by Rohwer et al. (1980) and the delayed maturation hypothesis by Procter-Gray and Holmes (1981). The second is the Female Mimicry Hy- pothesis (FMH). Rohwer and his coworkers (Rohwer et al. 1980, Rohwer 1983) developed this hypothesis by arguing that young males increase their chances of obtaining female-worthy territories and breeding as yearlings by mimicking females and, thus, eliciting less aggression from adult males in the early stages of territory establishment. -
Conservation of Biodiversity in México: Ecoregions, Sites
https://www.researchgate.net/ publication/281359459_DRAFT_Conservation_of_biodiversity_in_Mexico_ecoregions_sites_a nd_conservation_targets_Synthesis_of_identification_and_priority_setting_exercises_092000_ -_BORRADOR_Conservacion_de_la_biodiversidad_en_ CONSERVATION OF BIODIVERSITY IN MÉXICO: ECOREGIONS, SITES AND CONSERVATION TARGETS SYNTHESIS OF IDENTIFICATION AND PRIORITY SETTING EXERCISES DRAFT Juan E. Bezaury Creel, Robert W. Waller, Leonardo Sotomayor, Xiaojun Li, Susan Anderson , Roger Sayre, Brian Houseal The Nature Conservancy Mexico Division and Conservation Science and Stewardship September 2000 With support from the United States Agency for Internacional Development (USAID) through the Parks in Peril Program and the Goldman Fund ACKNOWLEDGMENTS Dra. Laura Arraiga Cabrera - CONABIO Mike Beck - The Nature Conservancy Mercedes Bezaury Díaz - George Mason High School Tim Boucher - The Nature Conservancy Eduardo Carrera - Ducks Unlimited de México A.C. Dr. Gonzalo Castro - The World Bank Dr. Gerardo Ceballos- Instituto de Ecología UNAM Jim Corven - Manomet Center for Conservation Sciences / WHSRN Patricia Díaz de Bezaury Dr. Exequiel Ezcurra - San Diego Museum of Natural History Dr. Arturo Gómez Pompa - University of California, Riverside Larry Gorenflo - The Nature Conservancy Biol. David Gutierrez Carbonell - Comisión Nal. de Áreas Naturales Protegidas Twig Johnson - World Wildlife Fund Joe Keenan - The Nature Conservancy Danny Kwan - The Nature Conservancy / Wings of the Americas Program Heidi Luquer - Association of State Wetland -
Avian Survey Report
Spring/Summer 2010 Avian Survey Report Stony Creek Wind Farm Wyoming County, New York January 24, 2011 PREPARED FOR: Stony Creek Energy LLC 51 Monroe St. Suite 1604 Rockville, MD 20850 PREPARED BY: Lackawanna Executive Park 239 Main Street, Suite 301 Dickson City, PA 18519 www.shoenerenvironmental.com Stony Creek Wind Farm Avian Survey January 24, 2011 Table of Contents I. Summary and Background .................................................................................................1 Summary .......................................................................................................................1 Project Description ........................................................................................................1 Project Review Background ..........................................................................................2 II. Bald Eagle Survey .............................................................................................................3 Bald Eagle Breeding Status in New York ......................................................................3 Daily Movements of Bald Eagle in New York ...............................................................4 Bald Eagle Conservation Status in New York ................................................................4 Bald Eagle Survey Method ............................................................................................5 Analysis of Bald Eagle Survey Data ..............................................................................6