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Article

Sexual dimorphism in Ramphastos toco and Ramphastos dicolorus (Piciformes, Aves).

Revista de biologia tropical - 1 Mar 2003

Castro Márcio S, Recco-Pimentel Shirlei M, Rocha Guaracy T

Abstract excerpt

Phenotypic sexual dimorphism seems to be rare in the Ramphastidae family, except in Pteroglossus viridis and in the genus Selenidera. Many breeders of wild birds believe that specimens of Ramphastos toco can be sexed using bill characteristics. In this study, various discriminant phenotypic variables were analyzed in birds which were sexed cytogenetically. Fifty-one specimens of R. toco and 20 R. dicolorus were...

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PMID: 15162699

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

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