CONTENTS 



INTRODUCTION xiii 



LIFE ZONES xvii 



GLOSSARY xxiii 



EXPLANATORY NOTES xxv 



BlKDS OF THE SOUTHWESTERN UNITED STATES 



ORDER DIVING BIRDS: PYGOPODES 2 



Family Grebes: Colymbidae 3 



Family Loons: Gaviidae 5 



Family Auklets, Murres, Puffins, etc. : Alcidae 7 



ORDER LONG-WINGED SWIMMERS: LONGIPENNES 12 



Family Jaegers: Stercorariidae 13 



Family Gulls and Terns: Laridae 13 



ORDER TUBE-NOSED SWIMMERS: TUBINARES 26 



Family Albatrosses: Diomedeidae 27 



Family Fulmars, Shearwaters, and Petrels: Hydrobatidae 27 



ORDER TOTIPALMATE SWIMMERS: STEGANOPODES 32 



Family Cormorants: Phalacrocoracidae 33 



Family Pelicans: Pelecanidae 33 



Family Man-o'-War Birds: Fregatidae 32 



ORDER LAMELLIROSTRAL SWIMMERS: ANSERES 36 



Family Ducks, Geese, and Swans: Anatidae 36 



ORDER HERONS, STORKS, IBISES, ETC. : HERODIONES 54 



Family Ibises: Threskiornithidae 54 



Family Wood Ibises: Ciconiidae 55 



Family Herons, Egrets, and Bitterns: Ardeidae 55 



ORDER CRANES, RAILS, ETC.: PALUDICOL^ 62 



Family Cranes: Gruidae 62 



Family Rails, Gallinules, and Coots: Rallidae 63 



ORDER SHORE-BIRDS: LIMICOL^) 66 



Family Phalaropes: Phalaropodidae 67 



Family Avocets and Stilts: Recurvirostridse 68 



