Number of eggs.—Clutch-size varies widely; first clutches are of about 12 eggs. Brood sizes vary from 3 to 12 individuals in Kansas.
Nests are placed on the ground surface, in pasture grasses, marsh grasses, cattail, sedge, and smartweed.
Pintail: Anas acuta Linnaeus.—This is a local summer resident in marshland. The time of greatest abundance is from September to May, but most birds move north for breeding.
Breeding schedule.—Eleven records of breeding span the period April 21 to June 10; the peak of egg-laying seems to be in the period May 1 to 10.
Number of eggs.—Clutch-size is around 10 eggs. Brood sizes vary from 3 to 8 individuals in Kansas.
Nests are placed on the ground surface, in cover of marsh grass, cattail, or sedge.
Blue-winged Teal: Anas discors discors Linnaeus.—This summer resident is locally common around marshes and ponds. The species arrives in spring in the period March 9 to April 5 (the median is March 23); birds are last seen sometime between October 7 and November 26 (the median is October 20).
Breeding schedule.—Twenty-two records of breeding span the period May 1 to May 30; the peak of egg-laying is around May 15. It is doubtful that the present data indicate the full extent of the egg-season in this duck.
Number of eggs.—Clutch-size is 8 to 12 eggs.
Nests are placed on the ground surface, in cover of grasses, cattail and sedges.