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- Title
Nocturnal Behavior of the Common Loon, Gavia immer.
- Authors
Paruk, James D.
- Abstract
Very little is known about nocturnal activity of Common Loons (Gavia immer). Knowledge of both diurnal and nocturnal behavior is needed to gain a complete understanding of their ecology. I used night vision light intensifiers to observe nocturnal behaviors of Common Loons. Results were consistent with the hypothesis that, as visual predators, loons would not forage at night and also that they would spend the majority of their time resting (92%). Loons, however, were just as active locomoting (patrolling) during the night as they were during the day. This suggests daily energy budgets need to be reexamined to incorporate this overlooked aspect of loon behavior. Lastly, loons on large lakes with multiple loon territories spent more time locomoting than loons on lakes that had just a single pair.
- Subjects
COMMON loon; RADIOACTIVE pollution of water; DIVERS (Birds); ALCIDAE; POPULATION biology; PREDATORY animals
- Publication
Canadian Field-Naturalist, 2008, Vol 122, Issue 1, p70
- ISSN
0008-3550
- Publication type
Article
- DOI
10.22621/cfn.v122i1.548