Breeding schedule.—Eggs are laid in June and July.
Number of eggs.—Clutch-size is about 4 eggs (Davie, 1898).
Nests are placed in deciduous shrubs and trees.
Dickcissel: Spiza americana (Gmelin).—This species is a common summer resident in eastern Kansas and is local and irregular in the west, in grassland habitats. Temporal occurrence is indicated in [Table 19].
Breeding schedule.—Forty-one records of breeding span the period May 1 to July 10 ([Fig. 8]); the modal date for egg-laying seems to be May 5, but the curiously abrupt inception of breeding described by this sample suggests that more records are needed to document fully the breeding schedule of this species. Breeding in April almost certainly will be found.
Number of eggs.—Clutch-size is about 4 eggs (4.1, 3-5; 14).
Nests are placed about two feet high (ranging from ground level to 12 feet) in grasses, osage orange, sedge, box elder, honey locust, clover, thistle, and blackberry.
Pine Siskin: Spinus pinus pinus (Wilson).—This irregular summer resident occurs locally north of the 38th parallel, chiefly around planted conifers. Known stations of breeding are in Hays, Ellis County, Concordia, Cloud County, and Onaga and St. Marys, Pottawatomie County.
Breeding schedule.—Twelve records of breeding span the period March 11 to May 20 ([Fig. 9]); most nests have been established in late April or by early May.
Number of eggs.—Clutch-size is about 4 eggs. Of ten nests examined for eggs, five had at least one egg of the Brown-headed Cowbird; if it is assumed that each cowbird egg replaced one of the siskins, mean clutch-size is 3.7 eggs.