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Red-billed Leiothrix sexing is a matter of colour

Pagani-Núñez, Emilio; Senar, Juan Carlos; Tella, José Luis


Juan Carlos Senar

José Luis Tella


Capsule The Red-billed Leiothrix (Leiothrix lutea) is a superficially sexually monochromatic colourful bird native to the Indian subcontinent, which has colonized many locations across the world as an introduced species. We investigated the best method to accurately sex the species, capturing and measuring the colour and external morphometry of a sample of 57 individuals, which were later sexed molecularly from blood samples. We found that sexes showed no dimorphism in biometry or size of wing coloured-patches. However, a Discriminant Function based on hue of the throat, chroma of the crown and lightness of the breast allowed us to determine sex with an accuracy of 91%.

Journal Article Type Article
Acceptance Date Nov 13, 2012
Online Publication Date Dec 21, 2012
Publication Date 2013
Deposit Date Nov 2, 2022
Journal Bird study
Print ISSN 0006-3657
Publisher British Trust for Ornithology
Peer Reviewed Peer Reviewed
Volume 60
Issue 2
Pages 285-288
Public URL