Northern Hawk Owl

Surnia ulula



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Figure 1. Distribution of the Northern Hawk Owl.

This species is generally distributed very sparsely within the range indicated. During winter, it occurs irregularly south to the dashed line, with rare sightings even further south. This species also breeds in Europe and Asia. See text for details.

Figure 2. Number of winter-banded Northern Hawk Owls in North America 1956-1992 (n = 363).

Unpublished data from the Bird Banding Office, Canadian Wildlife Service, Ottawa, ON.

Figure 3. Annual cycle of breeding, molt, and migration of N. Hawk Owl

Annual cycle of breeding, molt, and migration of the Northern Hawk Owl in North America. Molt is based in part on European studies. Thick lines show peak activity; thin lines, off-peak.

Figure 4. Female Northern Hawk Owl delivering prey to young at the nest.

Drawing by N. John Scmitt.

Recommended Citation

Duncan, J. R. and P. A. Duncan (2014). Northern Hawk Owl (Surnia ulula), version 2.0. In The Birds of North America (A. F. Poole, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA.