FALCONS, HAWKS, EAGLES, ETC. 



155 



berry, and on climbing the tree I found a heav}^ platform of sticks 

 three feet wide lined with Spanish moss. The j'oung blundered out 

 on my approach, showing- the nest to be fairly covered with bones 

 of wood rats. There were a dozen skulls, and bones, legs, skin, 

 and fur were strewn over the nest. Vkrxon Bailey. 



GENUS BUTEO. 



General Characters. — ^Size medium and large, form heavy ; wing.s longer 

 than tail ; emarginate primaries '•> or 4 ; sexes alike or similar ; female 

 larger thau male ; melanism frequent. 



KEY TO ADULT MALES. 



1. Three outer primaries with inner 

 webs distinctly cut out 



2. Primaries exceeding secondaries 



by nearly length of tail. Fig. '212."). 



sennetti, p. l.'iS. 

 2'. Primaries exceeding- secondaries by much less than length of tail. 



;]. Wing over 14 " swains oni. p. 159. 



;r. Wing under 1 !.")() platypterus, p. 100. 



1'. Four outer primaries with inner webs cut out. 



2. Outer webs of primaries spotted with white, buffy, 



or brownish elegailS. p. l.")?. 



2'. Outer webs of primaries without white, buffy. or Fig. 226. 



brownish spots, but with quadrate bands. 



3. Tail black or blackish, crossed by white zones. 



abbreviatus. p. 157. 



. Tail with more or le.ss 



of reddish brown. ^^^- -27. 



4. Upper parts strikingly marked and 

 spotted with white. 



kriderii. p. loO. 

 r.l'jjper ])arts not strikingly spotted 

 witli white. 

 .">. Tail dark rufous. 



borealis, p. bV), 



.■. .Tail pale rufous, calurus.p. loO. 



37. Buteo borealis {Cmel.). 



I{i:i)-taim;i) Hawk. 

 . Idit/ts. — TpixT j).n ts Itl.ifkish brown, 

 id gr.iy markings: tail retl- 



FroiH BioluKical Survey, V 

 Agriculture. 

 FiR. 228. 



Uc|)t. 



with wl 



disli hroicn. usually with black subter- 

 niiual band ; under parts white to black- 

 ish, with or without rusty on breast. 

 Yoiiini: tail gfray, crossed by (> to 10 

 dark bands ; bellv crossed bv blackish 

 zone. M,i/,': lengrth l'MM)-22.:)0. wing 



i;;..*)ti i(;..")(), tail s..")0-i().oo, bill .«.).-)- 



