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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Clayton, Dale H. | Experimental test of the importance of preen oil in Rock Doves (Columba livia) | Most species of birds have a uropygial gland, also known as a preen gland, which produces oil that birds spread through their plumage when preening. The plumage of waterfowl deprived of uropygial oil becomes brittle and is subject to breakage. | Columba livia; Columbiformes; Preen oil; Ectoparasites; Columbicola columbae; Campanulotes compare; Plumage | 2003 |
| 2 |
 | Clayton, Dale H.; Bush, Sarah Elizabeth | Is melanin a defense against feather-feeding lice? | The adaptive basis of plumage color has received much attention, including the finding that color can reveal information about parasite loads to potential mates. A related possibility, that color may be a direct defense against parasites, has received less attention. | Columba livia; Columbiformes; Ectoparasites; Columbicola columbae; Campanulotes compare; Plumage color; Eumelanin; Preening | 2006 |
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