250 PASSERES : Perching Birds 



AUDUBON HERMIT THRUSH 



(759a. Hylocichla guttata auduboni) 7f in. 

 Like the Alaska, but somewhat larger, and distinctly lighter. 

 The Hermit Thrush of the Rocky Mountain region. 



DWARF HERMIT THRUSH 



(759c. Hylocichla guttata nana) 7i in. 



Differs from the Alaska in darker and browner coloration; 

 chest-spots larger and darker. Not distinguishable in the field 

 from the Alaska form. 



MONTEREY HERMIT THRUSH 



(759d. Hylocichla guttata slevini) 7 in. 



Smallest of the Thrushes; gray above; breast gray-spotted on 

 dull white. 



SIERRA HERMIT THRUSH 



(759e. Hylocichla guttata sequoiensis) 1\ in. 

 Somewhat larger than the Alaska form, and grayer, with 

 breast-spots notably lighter. 



WESTERN ROBIN 



(761a. Planesticus migratorius propinquus) 10 in. 



Slaty gray upper parts, with blackish head and tail; variable 

 rusty brown below; throat white, b\a,ck-streaked ; eyelid white- 

 spotted. Bill yellow. 



Female, similar, but paler throughout. Juveniles have the 

 breast heavily marked with round dusky spots. 



Winter: Breast more or less edged with whitish. Duller 

 generally. 



NORTHERN VARIED THRUSH 



(763a. Ixoreus naevius meruloides) 9| in. 



Male: Clean slaty above; rusty brown below, with black breast- 

 band and side of head; stripe behind eye rusty brown, and wings 

 variously spotted and edged with same color. 



Female: Similar, but duller; breast-band indistinct. 



Robin-like in shape, habit, and action; often associates with 

 Robins. Feeds largely on wild berries. 



