Census of flammulated owls

Publication Type:

Conference Paper

Authors:

Reynolds, Richard T.

Source:

U. S. Forest Service, Rocky Mountain Forest and Range Experiment Station, Volume RM-142, p.308-309 (1987)

Call Number:

A87REY03IDUS

Keywords:

Flammulated Owl, Otus flammeolus, Psiloscops flammeolus

Abstract:

Flammulated owls (Otus flammeolus) best respond to taped or vocal imitations of their primary song from the latter part of May through early July. However, after the eggs hatch (early July), paired males cease to quickly respond to song imitations (= broadcast) but non-paired males continue to respond through the summer. During May to early July, it is best to count singing males between 1 hr after sunset and about 1 hr before sunup. If a count of singing males must continue after egg hatch, the count should not begin before 2 hrs after sunset and should end 2 hrs before sunup. Nesting males forage intensively for their families and have little time for territorial defense during these periods.

Notes:

Reference Code: A87REY03IDUS

Full Citation: Reynolds, R. T. 1987. Census of flammulated owls. Pages 308-309 in R. W. Nero, R. J. Clark, R. J. Knapton, and R. H. Hamre, eds., Biology and conservation of northern forest owls: symposium proceedings. General Technical Report RM-142. U. S. Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO

Location: ANIMAL EF: OTUS FLAMMEOLUS