Breeding schedule.—Forty-one records of breeding span the period May 11 to June 20 (26 records shown in [Fig. 3]); the modal date for laying is June 5.

Number of eggs.—Usually 4 eggs are laid.

Nests are placed on the surface of the ground, near water.

Wilson Phalarope: Steganopus tricolor Vieillot.—This is a local summer resident in marshes in central and western Kansas, but breeding records are available only from Barton County. The earliest date of occurrence is April 7 and the latest is October 14.

Breeding schedule.—Ten records indicate eggs are laid in May and June.

Number of eggs.—Three or 4 eggs are laid.

Nests are of plant stems in slight depressions in the ground.

Forster Tern: Sterna forsteri Nuttall.—This is a local summer resident in central Kansas, in marshes. There are breeding records only from Cheyenne Bottoms, Barton County (Zuvanich, 1963:1). First dates of arrival in spring span the period April 9 to 29 (the median is April 22), and apparent departure south in autumn occurs from August 1 to November 1 (the median is September 3).

Breeding schedule.—Twenty-three records of nesting are from late May to mid-June; all records are for the year 1962.

Number of eggs.—Usually 4 eggs are laid.