A Collared Forest Falcon at the Guira Oga wildlife rescue center, Iguazu, Argentina.  This species ranges from here to Mexico, under names such as Halcon Montes Collarejo.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/92252798@N07">Dick Culbert</a> from Gibsons, B.C., Canada
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/92252798@N07/16283236969/">Micrastur semitorquatus</a>