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Article: Migration of the Willow Flycatcher along the middle Rio Grande.
- Article from:
- Wilson Bulletin
- Article date:
- June 1, 1997
- Author:
CopyrightCOPYRIGHT 1997 Wilson Ornithological Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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The Willow Flycatcher (Empidonax traillii) breeds extensively from southern British Columbia east to Maine and south to California, Arkansas, and Virginia. It winters in Middle America from Veracruz and Oaxaca south to Panama (A.O.U. 1983, USFWS 1995). The species prefers thickets, scrubby and brushy areas, open second growth, swamps, and open woodland, breeding primarily in swampy thickets, especially of willow and buttonbush (A.O.U. 1983). In the southwestern United States, populations of the species have declined through the 20th century (Hubbard 1987, Unitt 1987, USFWS 1995), primarily due to loss of riparian habitat, water development, cattle grazing, brood parasitism ...