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Lotus Philadelphia, Bonaparte's gull 174 



Larus ridibundus, Black-headed gull 175 



Rissa tridactyla, Black-legged kittiwake 175 



Rissa brevirostris, Red-legged kittiwake 176 



Xema sabini, Sabine's gull 178 



Sterna hirundo, Common tern 178 



Sterna paradisaea, Arctic tern 179 



Sterna aletitica, Aleutian tern 180 



Family Alcidae 182 



Uria aalge, Common murre 182 



Uria lomvia, Thick-billed murre 182 



Cepphus columba, Pigeon guillemot 186 



Brachyramphus marmoratum, Marbled murrelet 187 



Brachyramphus brevirostre, Kittlitz's murrelet 188 



Synthliboramphus antiquum, Ancient murrelet 189 



Ptychoramphus aleutica, Cassin's auklet 191 



Cyclorrhynchus psittacula, Parakeet auklet 193 



Aethia cristatella, Crested auklet 194 



Aethia pusilla, Least auklet 197 



Aethia pygmaea, Whiskered auklet 200 



Cerorhdnca monocerata, Rhinoceros auklet 202 



Fratercula corniculata, Horned puffin 202 



Lunda cirrhata, Tufted puffin 204 



Family Cuculidae 205 



Cuculus saturatus, Oriental cuckoo 205 



Family Strigidae 205 



Bubo virginianus, Horned owl 205 



Nyceta scandiaca, Snowy owl 206 



Surnia ulula, Hawk owl 207 



Asio flammeus, Short-eared owl 207 



Aegolius funereus, Boreal owl 209 



Family Trochilidae 210 



Selasphorus rufus, Rufous hummingbird 210 



Family Alcedinidae 210 



Megaceryle alcyon, Belted kingfisher 210 



Family Picidae 211 



Dendrocopos pubescens, Downy woodpecker 211 



Picoides arcticus, Black-backed three- toed woodpecker .... 211 



Picoides tridactylus, Northern three-toed woodpecker .... 212 



Family Tyrannidae 212 



Sayornis saya, Say's phoebe 212 



Family Alaudidae 212 



Eremophila alpestris, Horned lark 212 



Family Hirundinidae 212 



Tachycineta thalassina, Violet-green swallow 212 



Iridoprocne bicolor, Tree swallow 213 



Riparia riparia, Bank swallow 213 



Hirundo rustica, Barn swallow 214 



Family Corvidae 214 



Perisoreus canadensis, Gray jay 214 



Pica pica, Black-billed magpie 215 



VI 



