title: Astaxanthin in the Cedar Waxwing.
abstract: The pigment on the secondary feathers of the cedar waxwing (Bombycilla cedrorum) is deposited as an amorphous layer upon a supporting medullary structure. The pigment was extracted with alkali and analyzed by chromatographic and spectrophotometric methods. The results indicate that the pigment is astacene (3,3',4,4'-tetra-keto-beta-carotene), the oxidation product of astaxanthin.
authors.forename: A H
authors.initials: AH
authors.lastname: Brush
authors.forename: K
authors.initials: K
authors.lastname: Allen