_Falco columbarius_
A small Hawk, about the size of a Sparrow Hawk.
The adult is slaty blue above, with a rusty collar
and a barred, white-tipped tail; below buff,
streaked with blackish. Young birds have the
upperparts blackish brown. L. 11.
_Range._ Breeds north of, and winters chiefly
south of the United States. Migrates northward in
April and May, and southward in September and
October.
Washington, not uncommon T.V. Ossining, tolerably
common T.V., Apl. 1-May 11; Aug. 10-Oct. 15.
Cambridge, common T.V., Apl. 25-May 5; Sept.
25-Oct. 20; occasional in winter. N. Ohio, rare
P.R. Glen Ellyn, regular but rare T.V., Apl.
26-May 5; Sept. 1-Oct. 16. SE. Minn., Apl. 13.
We know this Hawk as a not common migrant generally seen in open places
and along the shores. It feeds chiefly on small birds.