Article: A female Gambel's quail with partial male plummage.

Gambel's Quail (Callipepla gambelii) are sexually dimorphic, with males exhibiting head plumes that are long, wide, and black, a rusty head patch, a black facial bib outlined in white, and a black belly patch. Females have dark brown plumes which are shorter and narrower than males, and do not exhibit the other listed traits (Johnsgard 1973). In the late summer of 1996, we observed a captive female Gambel's Quail molting into partial male plumage. The female was at least two years old and had exhibited only female plumage in previous years.

We compared this female with typical male and female Gambel's quail (Table 1). The head plumes of the aberrant female were long, ...

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