Wood duck roosting flights were studied at a marsh near the mouth of Paint Creek, Allamakee County, Iowa, during late summer and fall of 1959 and 1960. Evening roosting flight counts were superior to morning counts for estimating roosting populations. Changes in times of flights and illumination associated with flights were noted as the season advanced. The roosting population built up to a pre-migration peak in mid-September. Counts fluctuated erratically after migration started about October 1, and the roost was abandoned in early November. Data collected at Paint Creek Roost were typical in general of those collected at the other 20 roosts investigated. Comparison of pre-migration populations by annual counts made about September 20 can be expected to show year-to-year changes in the Paint Creek Roost wood duck population.
Proceedings of the Iowa Academy of Science
©1961 Iowa Academy of Science, Inc.
"Wood Duck Roosting Flights at Paint Creek, lowa,"
Proceedings of the Iowa Academy of Science, 68(1), 264-270.
Available at: https://scholarworks.uni.edu/pias/vol68/iss1/40