VI BULLETIN 179^ UNITED STATES NATIONAL MUSEUM 



Order Passeriformes — Continued. 



Family Alaudidae — Continued. Page 



Otocoris alpestris actia: California horned lark 364 



Habits 364 



Otocoris alpestris enertera: Magdalena horned lark 366 



Habits 366 



Otocoris alpestris rubea: Ruddy horned lark 367 



Habits 367 



Otocoris alpestris occidentalis: Montezuma horned lark 368 



Habits 368 



Otocoris alpestris adusta : Scorched horned lark 368 



Habits 368 



Otocoris alpestris ammophila : Mohave horned lark 370 



Habits 370 



Otocoris alpestris leucansiptila: Sonora horned lark 371 



Habits 371 



Family Hirundinidae: Swallows 371 



Callichelidon cyaneo viridis : Bahama swallow 371 



Habits 371 



Distribution 374 



Tachycineta thalassina lepida: Violet-green swallow 374 



Habits 374 



Distribution 382 



Tachj^cineta thalassina brachyptera: San Lucas swallow 383 



Habits 383 



Iridoprocne bicolor: Tree swallow 384 



Habits 384 



Distribution 398 



Riparia riparia riparia: Bank swallow 400 



Habits 400 



Distribution 422 



Stelgidopteryx ruficollis serripennis: Rough-winged swallow 424 



Habits 424 



Distribution 43 1 



Chelidonaria urbica urbica: European martin 433 



Habits 433 



Distribution 439 



Hirundo erythrogaster: Barn swallow 439 



Habits 439 



Distribution 456 



Hirundo rustica rustica: European swallow 458 



Habits 458 



Distribution 462 



Petrochelidon albifrons albifrons: Northern cliflF swallow . 463 



Habits 463 



Distribution 482 



Petrochelidon albifrons tachina: Lesser cliff swallow 484 



Habits 484 



Petrochelidon albifrons melanogaster: Mexican cliff swallow 485 



Habits 485 



Petrochehdon fulva cavicola: Cuban cliff swallow 486 



Habits 486 



Distribution 487 



