Chopi Blackbird

Gnorimopsar chopi (Vieillot)

Many years ago (Friedmann, 1934:346) it was noted that Azara, in the opening years of the nineteenth century, had written that his Indian assistant, Noseda, had found this bird to be parasitized by the shiny cowbird, but he gave no definite records. Noseda's observations were probably made in southern Paraguay. Later, Sobrino made an observation similar to Noseda's in the province of Minas Gerais, Brazil, but, again, mentioned no specific instances (Friedmann, 1938:45). The first definite specimen record seems to be a set of 3 eggs of the host and 2 of the parasite (M. bonariensis melanogyna), taken in Arcos, Minas Gerais, October 1925, now in the Delaware Museum of Natural History. We are indebted to Mr. John E. du Pont for information about this set.

BROWN-AND-YELLOW MARSHBIRD