Black Skimmer

This is another bird that I've photographed many times in the US, but I thought it was interesting that the Chilean birds have darker faces than their North American counterparts. Otherwise a pretty standard flight frame.

Chiloe Island, Los Lagos, Chile, 12/23/21
Canon 600mm f/4 IS II + 1.4x III on EOS R5
1/4000 at f/5.6, ISO 800