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A Continent-Wide Migratory Divide in North American Breeding Barn Swallows (Hirundo rustica)
Populations of most North American aerial insectivores have undergone steep population declines over the past 40 years but the relative importance of factors operating on breeding, wintering, or stopover sites remains unknown. We used archival light-level geolocators to track the phenology, movement...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4466147/ https://www.ncbi.nlm.nih.gov/pubmed/26065914 http://dx.doi.org/10.1371/journal.pone.0129340 |