IV U. S. NATIONAL MUSEUM BULLETIN 211 



Family Icteridae: Meadowlarks, blackbirds, and troupials — Continued Page 



Agelaius phoeniceus megapolamus: Rio Grande redwing 157 



Habits 157 



Distribution 158 



Agelaius phoeniceus arctolegus: Giant redwing 158 



Habits 158 



Distribution 161 



Agelaius phoeniceus fortis: Thick-billed redwing 162 



Habits 162 



Distribution 164 



Agelaius phoeniceus nevadensis: Nevada redwing 164 



Habits 164 



Distribution 167 



Agelaius phoeniceus caurinus: Northwestern redwing 168 



Habits 168 



Distribution 168 



Agelaius phoeniceus mailliardorum: San Francisco redwing .... 169 



Habits 169 



Distribution 169 



Agelaius phoeniceus californicus: Bicolored redwing 170 



Habits 170 



Distribution 174 



Agelaius phoeniceus aciculatus: Kern redwing 174 



Habits 174 



Distribution 176 



Agelaius phoeniceus neutralis: San Diego redwing 176 



Habits 176 



Distribution 177 



Agelaius phoeniceus sonoriensis: Sonora redwing 177 



Habits 177 



Distribution 178 



Agelaius tricolor: Tricolored redwing 179 



Habits 179 



Distribution 189 



Agelaius humeralis: Tawny-shouldered blackbird 190 



Habits 190 



Distribution 191 



Icterus spurius: Orchard oriole 191 



Habits 191 



Distribution 207 



Icterus graduacauda audubonii: Audubon's black-headed oriole . . 210 



Habits 210 



Distribution 215 



Icterus cucullatus sennetti: Sennett's hooded oriole 215 



Habits 215 



Distribution 218 



Icterus cucullatus cucullatus: Swainson's hooded oriole 219 



Icterus cucullatus nelsoni: Arizona hooded oriole 220 



Habits 220 



Distribution 226 



