Skip to Main Content
Due to a lapse in federal funding, this USDA website will not be actively updated. Once funding has been reestablished, online operations will continue.
Chapter 3: ThreatsAuthor(s): Robert M. Marshall; Scott H. Stoleson
Source: In: Finch, Deborah M.; Stoleson, Scott H., eds. Status, ecology, and conservation of the Southwestern Willow Flycatcher. Gen. Tech. Rep. RMRS-GTR-60. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 13-24.
Publication Series: General Technical Report (GTR)
Station: Rocky Mountain Research Station
PDF: View PDF (70 B)
DescriptionThe continued survival of the southwestern willow flycatcher (Empidonax traillii extimus) is threatened indirectly by the loss, modification, and fragmentation of riparian habitat, and directly by factors that impact the survival and reproductive success of flycatchers. Because the impact of habitat loss on small populations can be particularly severe, we first discuss some of the population-level effects that may be influencing flycatcher population dynamics. We then review some contemporary cases of habitat loss and discuss other factors potentially impacting the flycatcher. The effects of brown-headed cowbird (Molothrus ater) parasitism on the southwestern willow flycatcher are discussed in detail in Chapter 8. For additional information on site-specific threats to the southwestern willow flycatcher readers should consult Greenwald (1998).
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationMarshall, Robert M.; Stoleson, Scott H. 2000. Chapter 3: Threats. In: Finch, Deborah M.; Stoleson, Scott H., eds. Status, ecology, and conservation of the Southwestern Willow Flycatcher. Gen. Tech. Rep. RMRS-GTR-60. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 13-24.
Keywordssouthwestern willow flycatcher, endangered species, riparian, Southwest, exotic woody plants, rivers, recovery, habitat restoration, Neotropical migratory bird, brown-headed cowbird
- Status, ecology, and conservation of the southwestern willow flycatcher
- Unusual nest sites for southwestern Willow Flycatchers
- Chapter 7: Migration and winter ecology
XML: View XML