BILATERAL GYNANDROMORPHY IN AGAPORNIS SP. (PSITTACIFORMES: PSITTACULIDAE)

Authors

  • Jorge Muñoz-Gil Centro de Investigaciones Ecológicas Guayacán, Península de Araya, Universidad de Oriente, Venezuela.
  • Gedio Marín-Espinoza Laboratorio de Ecología de Aves, Departamento de Biología, Universidad de Oriente, Cumaná, Venezuela https://orcid.org/0000-0002-1160-8017
  • Nelson Pacheco PDVSA-Criogénico Jose https://orcid.org/0000-0002-2367-4855
  • Roseline Zavala-Marcano Departamento de Química, Universidad de Oriente, Cumaná, Venezuela

DOI:

https://doi.org/10.24039/rtb2015131164

Keywords:

Agapornis, Bilateral gynandromorphy

Abstract

Bilateral gynandromorphy (BGA) is a rare state in which an individual exhibits both male and female traits. Gynandromorphy is exceptional in birds, but has been observed in a number of avian families, and is most commonly reported in the Passeriformes. The general pattern in BGA is female plumage characters on the left side and male characters on the right, corresponding to the orientation of the ovary and testis in birds. We documented observations of a bilateral gynandromorph in a captive love bird (Agapornis spp.), product of two forms: “lutino” (fischeri group), with yellow body, orange head, bright red bill, and bare white circunocular area x
“cremino” (roseicollis group), with white body, bill cream colored, no eyering. The bird exhibited the typical yellow and bright orange color of a lutino form on the right half of its body, and the white appearance of a cremino form on the right half, with red bill, and bare white circunocular area.

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Published

2015-12-12

How to Cite

Muñoz-Gil, J., Marín-Espinoza, G., Pacheco, N., & Zavala-Marcano, R. (2015). BILATERAL GYNANDROMORPHY IN AGAPORNIS SP. (PSITTACIFORMES: PSITTACULIDAE). The Biologist, 13(1), 161–163. https://doi.org/10.24039/rtb2015131164

Issue

Section

Scientific Notes