Ruddy Duck: Oxyura jamaicensis rubida (Wilson).—This is a local summer resident in marshland; numbers seem generally higher in western than in eastern Kansas. The season of greatest abundance is March through November, but numbers are conspicuously reduced in midsummer.
Breeding schedule.—Eggs are known to be laid in May and June.
Number of eggs.—Clutch-size is about 10 eggs (Davie, 1898).
Nests are placed near the edge of water, either in or on emergent marsh vegetation; nests of other marshland birds, such as coots, are sometimes appropriated (Davie, 1898).
Turkey Vulture: Cathartes aura teter Friedmann.—This summer resident is common throughout Kansas. Occurrence in time is indicated in [Table 11].
Breeding schedule.—Fifteen records of breeding span the period April 21 to June 10; earlier records will doubtless be found, to judge from the frequency distribution of the present sample. The peak of egg-laying is perhaps around May 1.
Number of eggs.—Clutch-size is 2 eggs (1.8, 1-2; 12).
Nests are placed in holes and crevices in trees and cliffs, on rocky ledges, and the like.
