Great Horned Owl (Bubo virginianus) productivity and home range characteristics in a shortgrass prairie

Rosemary A. Frank; R. Scott Lutz

Treesearch

Great Horned Owl (Bubo virginianus) productivity and home range characteristics in a shortgrass prairie

Informally Refereed

Authors:

Rosemary A. Frank, R. Scott Lutz

Year:

1997

Type:

General Technical Report

Station:

Northern Research Station

Source:

In: Duncan, James R.; Johnson, David H.; Nicholls, Thomas H., eds. Biology and conservation of owls of the Northern Hemisphere: 2nd International symposium. Gen. Tech. Rep. NC-190. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station. 185-189.

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Abstract

We studied movements and breeding success of resident Great Horned Owls (Bubo virginianus) at the Rocky Mountain Arsenal National Wildlife Refuge from 1994-1996. We captured adult owls prior to nest initiation and outfitted them with radio transmitters. Twelve, 5, and 11 pairs nested each year, respectively. Eleven nests successfully hatched and produced 24 owlets in 1994, 3 nests produced 6 owlets in 1995, and 10 nests produced 29 owlets in 1996. We documented three cases in which a single parent successfully fledged owlets. We recorded three cases of nest site reuse. Ninety-five percent adaptive kernel mean home range size did not differ between ages or sexes.

Parent Publication

Biology and conservation of owls of the Northern Hemisphere: 2nd International symposium

Citation

Frank, Rosemary A.; Lutz, R. Scott. 1997. Great Horned Owl (Bubo virginianus) productivity and home range characteristics in a shortgrass prairie. In: Duncan, James R.; Johnson, David H.; Nicholls, Thomas H., eds. Biology and conservation of owls of the Northern Hemisphere: 2nd International symposium. Gen. Tech. Rep. NC-190. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station. 185-189.