Hawks and Caracara. 
340. Zone-tailed Hawk (Butco abbreviatus). L.o, 
19; 9,21. Ads.- Tail with little if any white tip; 
inner webs of all but middle feathers with black and 
white bars. Yung. Browner; tail grayish brown; white 
on inner webs, with numerous blackish bars. Noéfes. 
Not unlike those of Buteo borealis. (Belding.) 
Range.—Tropical America north to southern Texas, southern Ari- 
zona and southern California. 
344. Short-tailed Hawk (Butco brachyurus). L. 
1731.7. Ads. Above slaty gray, tail barred with 
black and tipped with white; sides of breast rusty; rest 
of underparts whzte. Dark phase. Blackish, forehead 
whitish; tail lighter than back, barred with black. 
Yng. Above blackish brown, below cream buff, 
without black markings. Notes. Somewhat resemb- 
ling the scream of the Red-shouldered Hawk, but more 
prolonged. (Pennock.) 
Range.—Tropical America, north to eastern Mexico; rare in Flori- 
a. 
345. Mexican Black Hawk (Urub:tinga anthracina). 
L. &, 19; 9,21. Ads. Tail with a white tip and 
broad white band across a// the feathers. Yng. Above 
brownish black, buff and rusty; below buffy striped 
with blackish; tail with several black and whitish bars. 
Notes. Piping cries like the spring whistle of Numenius 
longirostris. (Bendire.) 
Range.—‘“‘Tropical America in general, north to central Arizona, 
and the Lower Rio Grande Valley in Texas.”’ (Bendire). 
362. Audubon Caracara (Polyborus cheriway). 
L. 22. Tail white with a black end and numerous 
black bars. Ads. Breast and hindneck barred; belly 
black. Yung. Crown, back, and belly dark brown; 
hindneck, breast and belly streaked with buffy. Notes. 
Generally silent, but sometimes utters a prolonged 
cackling note. (B. F. Goss.) } 
Range.—Northern South America, north to southern Texas, south- 
ern Arizona and Lower California; interior of southern Florida; resi- 
dent. 
363. Guadalupe Caracara (Polyborus lutosus). 
Resembles No. 362, but has rump and upper tail-cov- 
erts dull brown.sh buff broadly barred with dull brown; 
tail brownish buff with broad bars of grayish brown 
bordered by narrower zigzag bars or lines of dusky; 
terminal band less than 2.00 wide. (Ridgway.) 
Range.—Guadalupe Island, west of Lower California. 
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