Rufous-collared Sparrow or "Tico-Tico" (Zonotrichia capensis). - Known for its widely varied vocalizations, this sparrow ranges from the extreme south-east of Mexico to the tip of South America. It is also found on the island of Hispaniola. The Rufous-collared sparrow feeds on seeds, grains, insects, and spiders. Photo by Dario Sanches, via Flickr.