BIRD NOTES AFIELD 



2. Upper tall-coverts white, barred with brown, or largely brown 

 barred with white. 



a. Throat white, often streaked with brown; breast solid 

 brown; tail distinctly barred with brown. 



Adult Swainson's Hawk 21 



h. Upper tall-coverts varied with rusty brown. Above and 

 below dark brown varied with rusty. Tail white and gray 

 with bars absent or indistinct. Feet feathered to toes. 



Dark phase of Ferruginous Rough-leg 23 



c. Above dark brown varied with rusty; below light rufous, 

 belly barred with white; throat darker brown. Wings and 

 tail conspicuously barred with white. 



Adult Red-bellied Hawk 20 



d. Above dark brown varied with rusty; below white, heavily 

 streaked and spotted with brown, the belly solid brown. Feet 

 feathered to toes. 



Light phase of American Rough-leg 22 



II. No white on upper tail-coverts. 



1. Size very large (nearly 3 feet). 



a. Feet completely feathered; head always dark. 



Golden Eagle 24 



b. Feet with lower half featherless; head and tail white in 

 adult. 



Bald Eagle 25 



2. Size moderately large ( 1 8 to 24 inches). 



a. Breast reddish brown; belly white, spotted with brown. 



Dark phase of Swainson's Hawk 21 



b. Gjntinuously blackish above and below, or with lighter 

 mottlings. Or with a solid patch of dark brown on belly 

 only. 



Dark phase of American Rough-legged Hawk 22 



c. Continuously dark brown above and below. 

 a. Tail brown barred with dark. 



Dark phase of Swainson's Hawk 21 



h'. Tail rich rusty red, dark barred. 



Dark phase of Western Redtail 19 



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