White Whiskered Puffbird, Soberania National Park, PanamaThis is a white whiskered puffbird. Puffbirds are little guys with rather large heads that can be found in the tropics from Mexico to Brazil. I came across this one in Panama. As the name suggests they are often seen “puffing” out all their feathers as they perch motionless. They are silent assassins, sitting quietly without moving before attacking their prey — which includes insects, spiders, frogs and lizards.
Nikon D810 with Nikkor 200-400mm lens (at 400mm) ISO 1600, f/4 at 1/80th of a second