Coppery-headed Emerald

Coppery-headed Emeralds are only found in the highlands of Costa Rica. They were relatively uncommon at the hummingbird feeders at the Hummingbird Gallery near Monteverde on 5 July. I do not recall seeing a female (which have green-speckled, white breasts). Like many hummingbirds, Coppery-headed Emeralds form leks, where males sing and females mate with one or more of the males. Males spend most of their time in the forest canopy, wheres females are found closer to the ground (Neotropical Birds). The two photos in this post are both males, which gave me a bit of confusion, since they look so different. Presumably the difference is caused by different angles of light against the iridescent feathers.