There are lots of Turkey Vultures out there, the 3rd time, last time I went there one was flying high overhead of the property.
I'd sign on to it being a black vulture from South America, but it's not black headed (nor red).
Last night my wife was watching season 18 of the TV show Survivor, shot in Brazil. They showed footage of some vultures, I rewound the tape and took these pictures of the screen. These are taken at angles which I have been unable to replicate, I'm not sure why.
Going off photos alone of the mystery bird in flight, it certainly could be a vulture of some kind. The Black Vulture of South America has a wing span of 1.5 meters (almost five feet), could my excitement of the sighting added two feet?
Link:
http://www.arthurgrosset.com/sabirds/blackvulture.html
Vultures tend to sit more up right, 30 or 45 degrees. Seabirds and ground dwellers/nesters tend to sit/stand with a lower more level profile as seen in the photos I took. That said the roof angle is there, and if a bird sat at it's typical angle it might purposely correct for the roof angle.
http://s184.photobucket.com/albums/x295/kach22i/MISC/
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