The Owls of the central Brooks Range, Alaska
Campbell JM. 1969. The Owls of the central Brooks Range, Alaska. The Auk. 86(3):565-568
This research note mainly provides information on regional nesting and other activities of owls in the Anaktuvuk Pass region. The great horned owl (Bubo virginianus) shows regional nesting dates that vary by about 40 days. A juvenile male taken on 16 June 1963 was accompanied by an adult and still had much natal down; a juvenile female taken on 28 July 1959 was nearly the same age. Partial molting, at least, occurs in late May and June. The only recognizable remains in four stomach samples were a red squirrel (Tamiasciurus hudsonicus). Snowy owls (Nyctea scandiaca) are uncommon in summer in the central Brooks Range and on the central Arctic Slope. Hawk owls (Surnia ulula caparoch) are probably fairly common in forest habitats. Adult specimens weighed 317 g, 346 g, 319 g, and 418 g; the largest downy young weighed 124 g and the smallest weighed 61 g. Great gray owls (Strix nebulosa) apparently exist, but the author reports of only two possible sightings. Short-eared owls (Asio flammeus flammeus) are fairly common on tundra and open forest. Boreal owls (Aegolius funereus richardsoni) are described as most uncommon.
- Type
- Journal Article
- Authors
- Campbell, John
- Units
- GAAR
- Keywords
- Anaktuvuk Pass, Birds, Brooks Range, Distribution, Gates Of The Arctic National Park And Preserve, Nesting, Nests, Owls, Population, Reproduction