Bilateral Gynandrism in an Evening Grosbeak

Laybourne, Roxie C.

doi:10.2307/4083196

Cited by 9 publications

(4 citation statements)

References 4 publications

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“…A Common Rosefinch with right-sided female plumage (and then, apparently only in some feathers) had testes on both sides, but also a small ovary on the right (Kumerloeve 1987). Laybourne (1967) reported an Evening Grosbeak with an ovary on the left and a testis on the right, even though the plumage was male on the left and female on the right, and the same result obtained in the only suboscine case known, a White-ruffed Manakin (DaCosta et al 2007).…”

Section: Discussionsupporting

confidence: 58%

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Report of bilateral gynandromorphy in a Green Honeycreeper ( Chlorophanes spiza ) from Colombia

Murillo,

Campbell-Thompson,

Bishop

et al. 2023

JFO

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We report recent sightings, substantiated by color photographs and a short video, of a bilateral gynandromoph of the Green Honeycreeper (Chlorophanes spiza) from Villamaría, in the department of Caldas, Colombia. The bird exhibited typical male plumage on its right side and female plumage on the left. It was present for at least 21 months, and its behavior largely matched that of other wild Green Honeycreepers, although it often waited until they were gone before feeding on fruit that was put out daily by the property owners. We provide a comprehensive list and review of previous records of passerine bilateral gynandromorphy, noting which sex's plumage occurred on the left side. We observe that female plumage is possible on either side, supporting the double-fertilization model of bilateral gynandromorphy.RESUMEN. Reportamos avistamientos recientes, corroborados por fotografías a color y un video corto, de una ginandromorfía bilateral de Chlorophanes spiza en Villamaría, departamento de Caldas, Colombia. El ave presentaba un plumaje típico de macho en el lado derecho y de hembra en el izquierdo. Estuvo presente durante al menos 21 meses, y su comportamiento coincidía en gran medida con el de otros C. spiza silvestres, aunque a menudo esperaba a que se fueran para alimentarse de la fruta que los propietarios de la finca ponían a diario. Proporcionamos una lista exhaustiva y una revisión de los registros anteriores de ginandromorfía bilateral de paseriformes, señalando el plumaje de qué sexo se produjo en el lado izquierdo. Observamos que el plumaje femenino es posible en ambos lados, conclusión que apoya el modelo de doble fecundación de la ginandromorfía bilateral.

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Section: Discussionsupporting

confidence: 58%

“…3% larger than the left female-sided wing (Storey and Harrison 1969). Similarly concordant, albeit small, size differences were also present in an Evening Grosbeak (Laybourne 1967) and a Common Redstart (Moritz 1976).…”

Section: Discussionmentioning

confidence: 65%

Report of bilateral gynandromorphy in a Green Honeycreeper ( Chlorophanes spiza ) from Colombia

Murillo,

Campbell-Thompson,

Bishop

et al. 2023

JFO

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“…The dorsal side of the specimen has a mosaic of male and female colors throughout (Fig. 2), similar to known specimens of Evening Grosbeak (Coccothraustes vespertinus) gynandromorphs (Laybourne 1967).…”

supporting

confidence: 58%

Bilateral Gynandromorphy in a White-ruffed Manakin (Corapipo altera)

DaCosta¹,

Spellman²,

Klicka³

2007

The Wilson Journal of Ornithology

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ABSTRACT.-We report bilateral gynandromorphy in a White-ruffed Manakin (Corapipo altera) collected near Santa Fe, Panama in 2004. The specimen had an oviduct and ovary on the left side and a single testis on the right. The plumage was phenotypically female on the right side and male on the left. The weight and genetic affinity of the specimen were characteristically female. Both Z and W chromosomes were detected in 1 Barrick Museum of Natural History, University of Nevada Las Vegas, 4505 Maryland Parkway, Box 454012, Las Vegas, NV 89154, USA.2 Current address: Boston University, Department of Biology, 5 Cummington St., Boston, MA 02215, USA.3 Corresponding author; e-mail: dacostaj@bu.edu genetic samples from multiple tissue types and toe pads from both feet. This report is a novel record of gynandromorphy in a suboscine passerine.

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“…To date, almost all observations of wild gynandromorphs have been brief, single observations (Shaub 1960, Alström and Olsson 1988, Patten 1993, or descriptions of collected birds (Townsend 1882, Brodkorb 1935, Laybourne 1967, Laskey 1969, Lowther 1977, Tordoff 1983, Parrish et al 1987, DaCosta et al 2007) without detailed or prolonged observations of their behaviors. Only a single study has documented behavior in any detail and this was of an Evening Grosbeak (Cadbury 1973).…”

mentioning

confidence: 98%