424 BIRDS—FALOONID A. 
it appears to be chiefly a migrant, and perhaps a winter visitor. Mr. 
Dury, as stated by Mr. Langdon, procured specimens from the St. Mary’s 
Reservoir, where it may possibly breed, as it has been found breeding in 
corresponding latitudes in Illinois. In the vicinity of Columbus it is 
rare. I have seen a single specimen, and Mr. Jasper has one, which he 
took in the immediate vicinity of the city. 
The Great-footed or Duck Hawk, is noted for its swiftness of flight and 
great daring. It follows ducks and other water fowl on their migrations, 
pursuing and striking them down, while on the wing. It is sometimes 
very bold, seizing the bird, which the gunner has killed, and carrying it 
off, when almost within his reach. This temerity is often fatal. 
The nest of the Duck Hawk is usually placed in nearly inaccessible 
places on rocks, sometimes in trees. The eggs are four, variable in color, 
some being white sparingly spotted with light reddish-brown, others with 
the light color obscured with chocolate-brown, and with blotches of still 
darker brown. Eggs in the same nest sometimes present these extremes 
of coloration. ‘They measure about 2.20 by 1.70. 
FALCO COLUMBARIUS Linneus. 
Pigeon Hawk. 
Falco columbarius, KIRTLAND, Ohio Geolog. Surv., 1838, 161, 178.—Reap, Family Visitor, 
iii, 1852, 204; Proc. Philad. Acad. Nat. Sci., vi, 1853, 395—WHEATON, Ohio Agric. 
Rep. for 1860, 1861, 360; Reprint, 2; Food of Birds, ete., Ohio Agric. Rep. for 1874, 
1875, 570; Reprint, 10.—LANGDON, Cat.*Birds of Cin., 1877, 12. 
Hypotriorchis columbarius, KIRKPATRICK, Ohio Farmer, viii, 1858, 387; Ohio Agric. Rep. 
for 1£58, 1859, 347. 
Falco lithofalco, var. columbarius, LANGDON, Revised List, Journ. Cin. Soc. Nat. Hist., i, 
1879, 179; Reprint, 10. 
Falco columbarius, LINNZUS, Syst. Nat., i, 1766, 128. 
Hypotriorchis columbarius, GRAY, Gen. of Birds. 
Falco lithofalco, var. columbarius, RipGway, Proc. Bost. Soc., 1873, 46. 
Tarsus scarcely feathered above, with the plates in front enlarged, appearing like a 
double row of alternating scutelle (and often with a few true scutellxz at base); Ist and 
2d quill emarginated on inner web. 
Adult male, above ashy-blue, sometimes almost blackish, sometimes much paler; 
below pale fulvous or ochraceous, whitish on the throat, the breast and sides with large 
oblong dark-brown spots with black shaft lines; the tibis reddish, streaked with brown ; 
inner webs of primaries with about eight transverse white or whitish spots; tail tipped 
with white, and with the outer feather whitening ; with a broad subterminal black zone 
and 3-4 black bands alternating with whitish ; cere greenish-yellow, feet yellow. Fe- 
male with the upper parts ashy-brown; the tail with 4-5 indistinct whitish bands; 
about, 13; wing, 8; tail, 5; male smaller. 
Habitat, North America, ranging into Mexico, Central America and northern portions of 
South America. Ecuador. Jamaica. 
