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Migration and habitat preferences of Swainson's Hawks at an autumn stopover site in northwestern Texas

Journal of Raptor Research

By:
and
DOI: 10.3356/JRR-11-41.1

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Abstract

Unlike most raptors, the Swainson's Hawk (Buteo swainsoni) migrates long distances between breeding and wintering ranges, which elevates the importance of stopover sites for foraging. We conducted three years of fall surveys in the Southern High Plains of Texas. Migrant Swainson's Hawks moved through the area mostly between July and mid-October, peaking in September. Subadults tended to migrate earlier than adults, and light morphs before dark morphs. Favored foraging habitats included silage corn, green beans, and alfalfa, but the hawks foraged primarily where ongoing agricultural activities disturbed prey and made them more available.

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Migration and habitat preferences of Swainson's Hawks at an autumn stopover site in northwestern Texas
Series title:
Journal of Raptor Research
DOI:
10.3356/JRR-11-41.1
Volume
47
Issue:
1
Year Published:
2013
Language:
English
Publisher:
The Raptor Research Foundation
Contributing office(s):
Northern Prairie Wildlife Research Center
Description:
6 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Raptor Research
First page:
54
Last page:
59
Country:
United States
State:
Texas
County:
Castro County;Lamb County
Other Geospatial:
Southern High Plains