Breeding schedule.—Seven records of breeding span the period April 20 to June 10; the peak of egg-laying seems to be in the first week of May.
Number of eggs.—Clutch-size is 2 eggs.
Nests are placed about 35 feet high (from 25 to 50 feet) in cottonwood, willow, elm, black locust, and the like.
Sharp-shinned Hawk: Accipiter striatus velox (Wilson).—This rare summer resident apparently occurs only in the eastern part. The two nesting records are from Cloud and Pottawatomie counties.
Breeding schedule.—The information at hand suggests the birds lay in April and May.
Number of eggs.—Clutch-size is about 4 eggs (Davie, 1898).
Nests are placed 20 or more feet high in coniferous or deciduous trees.
Cooper Hawk: Accipiter cooperii (Bonaparte).—This is an uncommon resident. Specimens taken in the breeding season and actual records of nesting come from east of stations in Cloud, Anderson, and Montgomery counties.
Breeding schedule.—Fourteen records of breeding span the period March 21 to May 30; the modal date of egg-laying is April 25.
Number of eggs.—Clutch-size is 4 eggs (3.8, 2-5; 5).