Behaviour of the Buff-breasted Sandpiper at the Nest

Observations of Tryngites subruficollis on Victoria and Jenny Lind Islands, 1962 and 1966, indicate that the female, alone, incubates and rears the brood and that the species is polygamous. Brood patches were absent in males collected in June and July; however, the skin of the chin and throat of each was vascularized. A female, flushed from eggs, did not feign injury but when flying close to the observer, slowed speed by allowing legs to dangle.