Sparrow Hawk: Falco sparverius sparverius Linnaeus.—This is a common resident throughout Kansas, in parkland and woodland edge.
Breeding schedule.—Thirteen records of egg-laying span the period March 21 to May 20; the modal date of laying is not evident in this sample but it probably falls around April 10.
Number of eggs.—Clutch-size is 4 eggs (4.2, 3-5; 5).
Nests are placed in cavities about 16 feet high, actually 12 to 30 feet, in cottonwood, ash, maple, Purple Martin "houses," and human dwellings.
Greater Prairie Chicken: Tympanuchus cupido pinnatus (Brewster).—This is a locally common resident in eastern Kansas, in and about bluestem prairie grassland, and is local in the northwest in undisturbed plains grassland. Wolfe (1961) reports that the species was common in Decatur County shortly after the turn of the Century, but that it became rare by 1914.
Breeding schedule.—Twenty-one records of breeding span the period May 1 to June 10 ([Fig. 3]); the modal date for laying is May 5. The sample indicates an abrupt inception to laying of eggs, and this may be a reflection of timing characteristic of behavior at leks, or booming grounds.
Number of eggs.—Clutch-size is 12 eggs (11.7, 9-15; 17).
Nests are placed on the surface of the ground in bluestem grassland or plains bunchgrass, usually under cover of prairie grasses and forbs.
Lesser Prairie Chicken: Tympanuchus pallidicinctus (Ridgway).—This is a local resident in sandy grassland in southwestern Kansas. Distribution is to the west and south of Pawnee County.
Breeding schedule.—There is no information on timing of the breeding season in Kansas.