Houston city zoo
This injured eagle was doing rehab time at the Houston zoo. That, of course, also entailed being on public display. When I took his picture, he was glowering through the glass at the little humans on the other side. Maybe he couldn't fly yet. But he didn't have to be happy about it, either.
High contrast (in-camera) allowed everything to disappear but the head.
Canon EOS 7D, ISO-800, 1/125 sec, 100-400mm Canon lens at 210mm, f6.7