CONTENTS 



Order Passeriformes — Continued. 



Family Tyrannidae — Continued. Page 



Empidonax difficilis difficilis: Western flycatcher 246 



Habits 246 



Distribution 252 



Empidonax difficilis cineritius: San Lucas flycatcher 253 



Habits --- 253 



Empidonax fulvifrons pygmaeus: Buff-breasted flycatcher 254 



Habits 254 



Distribution 259 



Myiochanes pertinax pallidiventris: Coues's flycatcher 260 



Habits 260 



Distribution 266 



Myiochanes virens: Eastern wood pewee 266 



Habits 266 



Distribution 277 



Myiochanes richardsoni richardsoni: Western wood pewee 279 



Habits 279 



Distribution 286 



Myiochanes richardsoni peninsulae: Large-billed wood pewee 287 



Habits 287 



Nuttallornis mesoleucus: Olive-sided flycatcher 288 



Habits 288 



Distribution 300 



Pyrocephalus rubinus mexicanus: Vermilion flycatcher 302 



Habits 302 



Distribution 307 



Camptostoma imberbe : Beardless flycatcher 308 



Habits 308 



Distribution 314 



Family Alaudidae: Larks 314 



Alauda arvensis arvensis: Skylark 314 



Habits 314 



Distribution 319 



Otocoris alpestris arcticola: Pallid horned lark 320 



Habits 320 



Otocoris alpestris hoy ti : Hoyt's horned lark 322 



Habits 322 



Otocoris alpestris alpestris: Northern horned lark 325 



Habits 325 



Distribution 334 



Otocoris alpestris leucolaema: Desert horned lark 337 



Habits 337 



Otocoris alpestris praticola: Prairie horned lark 342 



Habits 342 



Otocoris alpestris giraudi: Texas horned lark 356 



Habits 356 



Otocoris alpestris strigata: Streaked horned lark 357 



Habits 357 



Otocoris alpestris merrilli : Dusky horned lark 358 



Habits 358 



Otocoris alpestris insularis: Island horned lark 361 



Habits 361 



