CONTENTS V 



Order Caprimtjlgiformes — Continued. ^"^^ 

 Family Caprimulgidae: Goatsuckers — Continued. 



Chordeiles acutipennis inferior: San Lucas nighthawk 253 



Habits 253 



Order Micropgdiifokmes 254 



Famil}' Micropodidae: Swifts 254 



Nephoecetes niger borealis: Northern black swift 254 



Habits 254 



Distribution 270 



Chaetura pelagica: Chimney swift 271 



Habits 271 



Distribution 290 



Chaetura vauxi: Vaux's swift 294 



Habits 294 



Distribution 303 



Micropus pacificus pacificus: Vvhite-rumped swift 304 



Habits 304 



Distribution 310 



Aeronautes saxatalis saxatalis: White-throated swift 310 



Habits 310 



Distribution 318 



Family Trochilidae: Hummingbirds 319 



Eugenes fulgens: Rivoli's hummingbird 319 



Habits 319 



Distribution 325 



Lampornis clemenciae bessophilus: Arizona blue-throated hum- 

 mingbird 325 



Habits 325 



Distribution 330 



Lampornis clemenciae clemenciae: Texas blue-throated hum- 

 mingbird 330 



Habits 330 



Archilochus colubris: Ruby- throated hummingbird 332 



Habits 332 



Distribution 350 



Archilochus alexandri: Black-chinned hummingbird 352 



Habits 352 



Distribution 360 



Calypte costae: Costa's hummingbird 361 



Habits 361 



Distribution 370 



Calypte anna: Anna's hummingbird 371 



Habits 371 



Distribution 387 



Selasphorus platycercus platycercus: Broad-tailed hummingbird. 387 



Habits 387 



Distribution 395 



Selasphorus ruf us: Rufous hummingbird 396 



Habits 396 



Distribution 409 



Selasphorus alleni: Allen's hummingbird 411 



Habits 411 



Distribution 417 



