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. =Shoveler=: _Anas clypeata_ Linnaeus.--This is an irregular and local summer resident, around marshes. Most individuals seen in the State are passage migrants. Breeding records are from Barton and Finney counties. _Breeding schedule._--Seasonal limits are unknown for the Shoveler in Kansas. _Number of eggs._--Clutch-size is about 8 eggs (Davie, 1898). Nests are placed on the ground surface in cover of marsh vegetation. =Wood Duck=: _Aix sponsa_ (Linnaeus).--This is an uncommon summer resident around wooded streams and ponds in eastern Kansas. Nesting records and specimens taken in the breeding season come from east of stations in Pottawatomie, Coffey, and Woodson counties. Most nesting records at present come from the Marais des Cygnes Wildlife Refuge, Linn County. The species is present in the State from March 5 to December 8. _Breeding schedule._--Eleven records of breeding span the period March 21 to May 10; the peak of egg-laying is probably in mid-April. The present data are inadequate for showing the full span of the breeding season. _Number of eggs._--Clutch-size is around 15 eggs, varying from 10 to 23 in the sample at hand. Nests are placed in crevices and hollows in trees near water, 10 to 70 feet high. =Redhead=: _Aythya americana_ (Eyton).--This duck nested at Cheyenne Bottoms, Barton County, 1962: 9 eggs found May 31 (M. Schwilling); also reported to have nested at Cheyenne Bottoms about 1928 (Tordoff, 1956:316). =Canvasback=: _Aythya valisineria_ (Wilson).--This duck nested at Cheyenne Bottoms, Barton County, 1962: 14 eggs found June 20 (M. Schwilling).