Copulation Performed by Killdeer During Incubation Period
Journal
Condor
Volume
48
Issue
4 (July-August)
Year
1946
Pages
180
Section
From Field and Study
Online Text
Copulation Performed by Killdeer During Incubation Period.-On April 29, 1946, at the Bear River Migratory Bird Refuge, Brigham, Utah, a female killdeer (Oxyechus vociferus) was closely observed leaving her eggs, which she had been incubating for 16 days, and advance about 8 feet from her nest site to meet an approaching male. Almost immediately copulation took place, after which the female wiggled her tail and shook her feathers, then returned to her nest and resumed incubation. -LLOYD F. GUNTHER, Bear River Refuge, Brigham, Utah, May 1,1946.
