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The uropygial gland fat from the jackdaw, the carrion and the hooded crow are shown to be ester waxes. Chemotaxonomically the latter two are undiscernible. Their uropygial waxes consist of 4- and 6-monomethyl-, 4.6-, 4.8-, and 4.10-dimethyl- and 4.6.10- and 4.6.12-trimethyl- substituted fatty acids and n- (59.7%) as well as monomethyl-branched alkanols with branches in 4-, 6-, 10-, and 14-position. In contrast to the jackdaw they show no relation to the earlier investigated rook.

zeitschrift für naturforschung c

Zur Chemotaxonomie der Rabenvögel. Zusammensetzung der Bürzeldrüsensekrete der Dohle (Coloeus monedula), Raben- (Corvus corone corone) und Nebelkrähe (Corvus corone cornix) / Chemotaxonomy of Corvidae. The Uropygial Gland Fat from the Jackdaw (Coloeus monedula), Carrion Crow (Corvus corone corone) and the Hooded Crow (Corvus corone corvix)