This bird has the name of Cuervillo Face Peeled when I saw it, I noticed a certain resemblance to the Zamuro, when I got a closer mor look at her, the most notable characteristic is that its beak was much longer and curved, in terms of size have much similarity, the wings of these birds if they are a little longer, like their legs.
It is opaque, blackish with green and iridescent blue on the wings. Both the face, beak and paws are pink. Equal sexes (without sexual dysmorphism) are seen in group as will be seen in the video. It is earthly and silent.
These birds in addition to our country Venezuela can also be seen in countries such as Argentina, Uruguay, Brazil, Paraguay and Bolivia.
Here's a picture where you can see better thanks to the photographer Carlos E. Pérez S.l.
Photos of my authorship, taken with my KODAK EASYSHARE M590 camera, city Ojeda, East Coast of the lake, Zulia State, Venezuela..