Yesterday I posted a photo of a Male Brown-headed Cowbird. Here’s a female that I found on the same day, March 22nd 2012.
The female has the same thick beak as the male and the female is basically the same size and shape as the male. Coloration is completely different, at least as far as the feathers are concerned. The genders do share the same color legs, feet and beak.
Brown-headed Cowbird Female