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Mata Atlântica
"must" be Turdus albicollis, I do not know any other bird with this typical white patch. The colors of the beak may vary depending on the location. You have one of the southern nominate group. The other one is from Amazonia with a dusky bill.
https://www.flickr.com/photos/dariolins/...
http://www.coave.org.br/biblioteca-de-av...
http://en.m.wikipedia.org/wiki/White-nec...