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Change in beak overhangs of cliff swallows over 40 years: Partly a response to parasites?
Some birds exhibit a maxillary overhang, in which the tip of the upper beak projects beyond the lower mandible and may curve downward. The overhang is thought to help control ectoparasites on the feathers. Little is known about the extent to which the maxillary overhang varies spatially or temporall...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Public Library of Science
2022
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8863248/ https://www.ncbi.nlm.nih.gov/pubmed/35192650 http://dx.doi.org/10.1371/journal.pone.0263422 |