x 356. Duck Hawk (Falco peregrinus anatum). ye 
3, 16; 2,19. Sides of throat black. Ads. Above 
bluish slate; below buffy. Yag. Above blackish 
margined with rusty; tail with broken rusty bars and 
whitish tip; below deep rusty buff streaked with black- 
ish; under surface of wing uniformly barred. Notes. 
Loud screams and noisy cacklings. (Bendire.) 
Range.—Western Hemisphere; breeds locally from Southern States 
to Arctic regions; winters from Northern States southward; more 
common west of Rocky Mountains. 
356a. Peale Falcon(F. p. pealei). Ads. Crown 
uniform with back; chest heavily Spotted with blackish; 
bars of remaining underparts very broad. (Ridgw.) 
Range.—Pacific coast region of North America from Oregon to the 
Aleutian and Commander Islands, breeding throughout its range." 
(a. O. UL) 
“ 357. Pigeon Hawk (Falco columbarius). L. &, 
10.5; 2, 13. Two outer primaries notched. Ad. oy. 
Above slaty blue; middle tail feather with not more 
than jour black bands. 4d. 2 and Yng. Above dark _ 
blackish brown; bars in middle tail feather five or less; ° 
below more heavily barred than in ¢. 
Range.—North America, east of Rocky Mountains: breeds chiefly 
north of United States from Rocky Mountains and westward: breeds ~ 
from Colorado and California ‘north to Alaska; winters from Gulf 
States, Colorado and California, south to northern South America. 
357a. Black Merlin (F. ¢. suckler?) Similarto No. 
357, but much darker above and more heavily marked 
below; bars on tail and under side.of wing nearly ob- 
solete. 
Range.—Pacific coast from northern California to Sitka; east to 
eastern Oregon and Washington. 
358. Richardson Merlin (Falco richardsoniz), Re- 
sembles No. 357, but is paler and has the central tail 
feather crossed by six light bars, counting the terminal 
one. 
Range.—Interior of North America from eastern border of Grea* 
Plains west; rare west of Rockies; north to,at least,latitude 53° ; south 
to Mexico. 
359. Aplomado Falcon (Falco fisco-cwrulescens). 
L. @, 16; 2, 17.5. Middle of belly black. Aas. 
Above slaty gray; breast buff, lower belly rusty. Yong. 
~ Similar but grayish brown above, belly paler. 
Range.—South and Central America north to southern border of the 
United States. 
ph 360. Sparrow Hawk (Falco sparverius). L. 10; 
Q, uu. Ad. gf. _ Tail with one black.bar; below 
spotted. Ad. 2. Whole back barred; tail with num- 
erous black bars; below streaked. Notes. A rapidly re- 
peated Avlly-Ailly-Ailly, usually uttered while on the 
wing. 
cs ae na North America west to Rocky Mountains: breeds 
from Gulf States to Hudson Bay; winters from southern Illinois and New 
Jersey southward. 
137 
Hawks. 
Female. 
