BIRDER’S CONSERVATION HANDBOOK This page intentionally left blank BIRDER’S CONSERVATION HANDBOOK 100 North American Birds at Risk Q J E F F R E Y V. W E L L S PRINCETON UNIVERSITY PRESS Princeton and Oxford Copyright © 2007 by Princeton University Press Published by Princeton University Press, 41 William Street, Princeton, New Jersey 08540 In the United Kingdom: Princeton University Press, 3 Market Place, Woodstock, Oxfordshire OX20 1SY All rights reserved Library of Congress Cataloging-in-Publication Data Wells, Jeffrey V. (Jeffrey Vance), 1964– Birder’s conservation handbook : 100 North American birds at risk / Jeffrey V. Wells. p. cm. Includes bibliographical references and index. ISBN 978-0-691-12322-6 (cloth : alk. paper) ISBN 978-0-691-12323-3 (pbk. : alk. paper) 1. Birds—Conservation—North America. 2. Rare birds—North America. I. Title. QL676.57.N7W45 2007 598.168097—dc22 2007017248 British Library Cataloging-in-Publication Data is available This book has been composed in Goudy text and Gill Sans for display Printed on acid-free paper. ∞ pup.princeton.edu Printed in the United States of America 1 3 5 7 9 10 8 6 4 2 Research for the Book Was Made Possible through the Generous Financial Support of ELLSWORTH KELLY FOUNDATION Boreal Songbird Initiative Conserving the Boreal Forest for Our Songbirds www.borealbirds.org 1904 Third Avenue, Suite 305 Seattle, WA 98101 Tel: (206) 956-9040 Canadian Boreal Initiative Canada’s Boreal is Ours—Share the Commitment www.borealcanada.ca 249 McLeod Street Ottawa, ON Canada K2P 1A1 Tel: (613) 230-4739 Commission for Environmental Cooperation Three Countries Working Together to Protect Our Shared Environment www.cec.org 393, rue St-Jacques Ouest Bureau 200 Montréal, QC Canada H2Y 1N9 Tel: (514) 350-4300 Cornell Lab of Ornithology Interpreting and conserving the earth’s biological diversity through research, education, and citizen science focused on birds www.birds.cornell.edu 159 Sapsucker Woods Road Ithaca, NY 14850 Tel: (800) 843-BIRD Defenders of Wildlife Dedicated to the protection of all native wild animals and plants in their natural communities www.defenders.org 1130 17th Street NW Washington, DC 20036 Tel: (800) 385-9712 The Nature Conservancy Saving the Last Great Places on Earth www.nature.org 4245 North Fairfax Drive, Suite 100 Arlington, VA 22203 Tel: (703) 841-5300 U.S. Fish and Wildlife Service Conserving the Nature of America www.fws.gov 1849 C Street, NW Washington, DC 20240 Tel: (800) 344-WILD U.S. Bureau of Land Management www.blm.gov Office of Public Affairs 1849 C Street NW, Room 406-LS Washington, DC 20240 Tel: (202) 452-5125 U.S. Environmental Protection Agency 35 Years of Protecting Human Health and the Environment www.epa.gov Ariel Rios Building 1200 Pennsylvania Avenue NW Washington, DC 20460 Tel: (202) 272-0167 Contents Foreword by John W.Fitzpatrick ix Yellow Rail (Coturnicops noveboracensis) 125 Black Rail (Laterallus jamaicensis) 129 Acknowledgments xi Whooping Crane (Grus americana) 133 American Golden-Plover (Pluvialis dominica) 137 Scope and Purpose 1 Pacific Golden-Plover (Pluvialis fulva) 142 Birds as Indicators 5 Snowy Plover (Charadrius alexandrinus) 145 The State of North American Bird Piping Plover (Charadrius melodus) 149 Populations 9 Mountain Plover (Charadrius montanus) 154 Major Conservation Issues Affecting Eskimo Curlew (Numenius borealis) 159 North America’s Birds 18 Whimbrel (Numenius phaeopus) 163 The State of Bird Conservation in North Bristle-thighed Curlew (Numenius tahitiensis) 169 America and Beyond 33 Long-billed Curlew (Numenius americanus) 172 What You Can Do 42 Marbled Godwit (Limosa fedoa) 176 Surfbird (Aphriza virgata) 180 Species Accounts Red Knot (Calidris canutus) 183 Emperor Goose (Chen canagica) 47 Buff-breasted Sandpiper (Tryngites Brant (Branta bernicla) 49 subruficollis) 188 Trumpeter Swan (Cygnus buccinator) 53 Short-billed Dowitcher (Limnodromus American Black Duck (Anas rubripes) 56 griseus) 193 Mottled Duck (Anas fulvigula) 59 American Woodcock (Scolopax minor) 199 Steller’s Eider (Polysticta stelleri) 62 Wilson’s Phalarope (Phalaropus tricolor) 203 Spectacled Eider (Somateria fischeri) 65 Heermann’s Gull (Larus heermanni) 208 Greater Sage-Grouse (Centrocercus Red-legged Kittiwake (Rissa brevirostris) 211 urophasianus) 68 Elegant Tern (Thalasseus elegans) 214 Gunnison Sage-Grouse (Centrocercus Marbled Murrelet (Brachyramphus minimus) 72 marmoratus) 217 “Blue”Grouse,including Dusky (Dendragapus Kittlitz’s Murrelet (Brachyramphus brevirostris) 221 obscurus) and Sooty Grouse (Dendragapus Xantus’s Murrelet (Synthliboramphus fuliginosus) 75 hypoleucus) 224 Greater Prairie-Chicken (Tympanuchus Craveri’s Murrelet (Synthliboramphus craveri) 227 cupido) 79 White-crowned Pigeon (Patagioenas Lesser Prairie-Chicken (Tympanuchus leucocephala) 229 pallidicinctus) 83 Green Parakeet (Aratinga holochlora) 232 Montezuma Quail (Cyrtonyx montezumae) 86 Thick-billed Parrot (Rhynchopsitta Yellow-billed Loon (Gavia adamsii) 89 pachyrhyncha) 236 Laysan Albatross (Phoebastria immutabilis) 91 Red-crowned Parrot (Amazona viridigenalis) 240 Black-footed Albatross (Phoebastria nigripes) 94 Spotted Owl (Strix occidentalis) 244 Short-tailed Albatross (Phoebastria albatrus) 96 Rufous Hummingbird (Selasphorus rufus) 248 Bermuda Petrel (Pterodroma cahow) 99 Red-headed Woodpecker (Melanerpes Black-capped Petrel (Pterodroma hasitata) 102 erythrocephalus) 251 Pink-footed Shearwater (Puffinus creatopus) 104 Red-cockaded Woodpecker (Picoides Black-vented Shearwater (Puffinus borealis) 255 opisthomelas) 106 Ivory-billed Woodpecker (Campephilus Ashy Storm-Petrel (Oceanodroma homochroa)108 principalis) 259 Black Storm-Petrel (Oceanodroma melania) 110 Olive-sided Flycatcher (Contopus cooperi) 262 Least Storm-Petrel (Oceanodroma microsoma)113 Bell’s Vireo (Vireo bellii) 267 Red-faced Cormorant (Phalacrocorax urile) 116 Black-capped Vireo (Vireo atricapillus) 271 California Condor (Gymnogyps californianus) 118 Gray Vireo (Vireo vicinior) 274 Ferruginous Hawk (Buteo regalis) 121 Florida Scrub-Jay (Aphelocoma coerulescens) 277 viii • Contents Island Scrub-Jay (Aphelocoma insularis) 280 Brewer’s Sparrow (Spizella breweri) 355 Pinyon Jay (Gymnorhinus cyanocephalus) 282 Baird’s Sparrow (Ammodramus bairdii) 359 Brown-headed Nuthatch (Sitta pusilla) 284 Henslow’s Sparrow (Ammodramus henslowii) 362 California Gnatcatcher (Polioptila californica) 287 Saltmarsh Sharp-tailed Sparrow (Ammodramus Bicknell’s Thrush (Catharus bicknelli) 290 caudacutus) 366 Bendire’s Thrasher (Toxostoma bendirei) 293 Harris’s Sparrow (Zonotrichia querula) 369 Sprague’s Pipit (Anthus spragueii) 296 McKay’s Bunting (Plectrophenax hyperboreus) 373 Bachman’s Warbler (Vermivora bachmanii) 299 Painted Bunting (Passerina ciris) 375 Golden-winged Warbler (Vermivora Tricolored Blackbird (Agelaius tricolor) 378 chrysoptera) 303 Rusty Blackbird (Euphagus carolinus) 381 Virginia’s Warbler (Vermivora virginiae) 306 Colima Warbler (Vermivora crissalis) 308 Appendix I.North American Birds of Conservation Lucy’s Warbler (Vermivora luciae) 310 Concern Listed by Different Agencies and Golden-cheeked Warbler (Dendroica Organizations 385 chrysoparia) 312 Grace’s Warbler (Dendroica graciae) 315 Appendix II.Hawaiian Birds of Conservation Kirtland’s Warbler (Dendroica kirtlandii) 318 Concern and Extinct Species 421 Prairie Warbler (Dendroica discolor) 321 Bay-breasted Warbler (Dendroica castanea) 325 Appendix III.Mexican Government Official List of Cerulean Warbler (Dendroica cerulea) 329 Endangered,Threatened,and Special Concern Prothonotary Warbler (Protonotaria citrea) 333 Bird Species 424 Worm-eating Warbler (Helmitheros Appendix IV.Agencies and Organizations Involved vermivorum) 337 in Bird Conservation 431 Swainson’s Warbler (Limnothlypis swainsonii) 341 Kentucky Warbler (Oporornis formosus) 344 Illustration Credits 437 Canada Warbler (Wilsonia canadensis) 347 Bachman’s Sparrow (Aimophila aestivalis) 352 Index 439 Foreword Consider the tools all of us have at our fingertips species in which today’s low reproductive rates ap- these days to help us become more knowledgeable pear to be indirectly caused by acid rain. Likewise, birders. Thousands of books, audio guides from policies that reduce reliance on fossil fuels respon- every corner of the planet, plus a burgeoning num- sible for global warming can have positive implica- ber of websites, listservs, and chatrooms. At any tions for species as diverse as Piping Plovers level of skill or experience, we can find answers to (affected by severe storms and tides), Bald Eagles any question about bird identification, bird biolo- (affected by mercury poison from coal-fired power gy, bird sounds, and birding locations. But until plants), and Cerulean Warblers (affected by now, a conspicuous gap has existed in these re- mountaintop removal for coal extraction). sources: what about bird conservation? It is important to acknowledge that besides North American birders have become in- being a first rate scholar, Jeff Wells also is an ex- creasingly concerned about the status of some of traordinary birder. I saw and learned from his most our most familiar species, and the time was ripe for impressive skills during our nine consecutive years an easy-to-use but definitive guide to the conserva- together as “Sapsuckers” (the Cornell Lab’s World tion status of our most vulnerable birds. My col- Series of Birding team, which included two first- league and long-time birding compatriot Jeff Wells place finishes during that period). Watching him has filled the void with the creation of this book. pick out the song of a Bay-breasted Warbler from a Birders and biologists alike will find here a re- moving vehicle on a gravel road, amidst a dizzying source that highlights the most threatened bird spring chorus, was one of the most amazing feats I species in North America, and outlines what we ever witnessed in birding, but to Jeff this was busi- must do to secure their populations. ness as usual. Conversation in the long car rides During the years that Jeff worked at the Cor- back from Cape May, New Jersey, to Ithaca, New nell Lab of Ornithology I frequently stopped by his York often turned to the potential for the 40 to 60 office to discuss conservation issues. He has long million North American birders to help define and been “plugged in” to the latest status reports, and push bird conservation in the twenty-first century. has made a successful career out of analyzing con- Jeff was a key player in our creating eBird and the servation priorities based on real data. His desk Great Backyard Bird Count, now among the was always piled high with journals, bird biogra- largest continent-wide bird population surveys. phies, journal articles, government reports, man- Engaging birders of all skill levels has always agement guidelines, and books on threatened been one of Jeff’s most far-reaching goals, and The species, not to mention data tables of his own cre- Birder’s Conservation Handbook was born out of his ation. Throughout his period as Director of Bird commitment to this mission. This book belongs on Conservation for National Audubon, and now as the shelf right next to your field guides, and you Senior Scientist for the Boreal Songbird Initiative, should use it the same way. Browse it over break- Wells has been engaged in detective work that al- fast, consult it often as a reference, and dog-ear its ways is as thorough and scholarly as his conversa- key passages. Unlike some of the other conserva- tions are lively. tion classics (Greenway’s Extinct and Vanishing Now all his painstaking efforts (and even Birds of the World, Leopold’s A Sand County Al- some of that lively conversation) are pulled to- manac, and Carson’s Silent Spring come to mind), gether in one place. In The Birder’s Conservation this book is purposely created to be portable. Not Handbookwe find Wells’ holistic look at how poli- intended to sit under glass in the den, this book cies, conservation projects, and protection ef- was made to end up with coffee stains on it just forts—many of them designed to accomplish nar- like your favorite bird guide. row initial purposes—are helping conserve whole This book gives everyone who cares about birds ecosystems and even human health, as well as the some real, practical information on how we can birds. Take, for example, the efforts to curb acid make a difference as individuals in keeping our rain originally designed to reduce impacts on common birds common and our rarest birds from aquatic life in lakes and ponds. Wells highlights disappearing. Ranging from the obvious (contribute how these are benefiting the Wood Thrush, a to conservation organizations and land trusts) to