While leading a bird behavior field trip for Travis Audubon, we observed a female Orchard Oriole approaching this bird several times. We didn't see her feed it, but she was acting as if she was coming in to feed it. We quickly ID'd the bird as an immature cowbird, and after further research, we ID'd it as an immature Bronzed Cowbird. (This ID was later confirmed by Dr Byron Stone.) A pair of adults have been in the park for a while now.
On an earlier field trip to the park (6/14/14), we observed a male Orchard Oriole feeding an immature cowbird. At the time we assumed the cowbird was a Brown-headed Cowbird and didn't look closer. Later in the morning we saw the adult pair of Bronzed Cowbirds and I wished we had looked closer at the immature!
I think this may be an early observation of breeding activity by Bronzed Cowbirds in Travis County.
Ave de plumaje pardo, casi negro, ojos rojos, sobre mezquita, en el terreno de mi escuela (COBAEH Atotonilco)
El vaquero de ojos rojos (Molothrus aeneus), también conocido como tordo ojo rojo , es una especie de ave paseriforme de la familia Icteridae. Es nativo de Belice, Colombia, Costa Rica, El Salvador, Guatemala, Honduras, México, Nicaragua, Panamá, y Estados Unidos. Su hábitat natural se compone de bosque y pastizales.