Diferencias sexuales en jóvenes de Gorrión común (Passer domesticus)

• Autores: Pedro Javier Cordero Tapia
• Localización: Butlletí del Grup Català d'Anellament, ISSN 1130-2070, Vol. 7, Nº. 1, 1990, págs. 3-6
• Idioma: español
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• Resumen

  • Ninety nine postmortem juvenile House Sparrows were examined. The birds were grouped according to the colour of the throat: specimens with any greyish tinge, and specimens with pure white or whitish throat but no grey present. Anatomical analysis revealed that 2 % of males and 5 % of juvenile females were wrongly sexed if the presence of any greyish hue was used as a characteristic for males and its absence for females. The validity of this and other coloration characters for juvenile sex determination are discussed.