Order
Strigiformes
Family
Strigidae
Genus
Surnia
 
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Version 2.0

This is a historic version of this account.  Current version

SPECIES

Northern Hawk Owl Surnia ulula

James R. Duncan and Patricia A. Duncan
Version: 2.0 — Published April 25, 2014

Revision History

Birds of North America

  • Version  2.0

  • Revision
  • April 25, 2014
  • Northern Hawk Owl Surnia ulula

Authors

James R. Duncan and Patricia A. Duncan

Revisors

James R. Duncan and Patricia A. Duncan

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. https://doi.org/10.2173/bna.356

Recommended Citation

Duncan, J. R., and P. A. Duncan. 1998. Northern Hawk Owl (Surnia ulula). In The Birds of North America, No. 356 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA. https://doi.org/10.2173/tbna.356.p

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. https://doi.org/10.2173/bna.356