The Screaming Cowbird parasitizes almost exclusively the Greyish Baywing. In the photo a young Screaming Cowbird is claiming for food. The plumage of both birds is quite similar. But on the screaming cowbird black spots are already appearing.

The Screaming Cowbird parasitizes almost exclusive the Greyish Baywing. In the photo a young Screaming Cowbird is claiming for food. The plumage of both birds is quite similar. But on the screaming Cowbird black spots are already appearing.

The Screaming Cowbird parasitizes almost exclusive the Greyish Baywing. In the photo a young Screaming Cowbird is claiming for food. The plumage of both birds is quite similar. But on the screaming Cowbird black spots are already appearing.

This bay-winged cowbird looked for food on a cattail pile beside the wall. With the morsel in its bill it flew to a tipu tree nearby, stayed there for a few seconds and crossed the street to reach another tree. Clear sign that it was food for a chick, otherwise it would have eaten it right away. After some attempts we spotted the nest in a poplar. He was reusing a great kiskadee's nest. We assumed the chick or chicks should be very little since we could not see gaping bills.

In the nest