La Baula Lodge, Tortuguero, Costa Rica
I fell In love with this guilty looking gentleman who was being tormented by a male grackle. Each time he would stop walking away, the bird would return and peck at his backside which would then spur him on to walk further. The residents of the lodge who pointed out the situation to me and I watched the scene for quite a while getting a great laugh from it. Although these monkeys are vegetarian, they are not above tasting eggs on occasion, and birds are very protective of their nests, this might account for the guilty look of our friend's face!
Cropped and sharpened for detail.