Green-Crowned Brilliant HummingBird

A Green-Crowned Brilliant Hummingbird (Heliodoxa jacula) feeding from a heliconia flower at La Paz Waterfall Gardens in Costa Rica. 
Hummingbirds have one of the fastest metabolisms in the animal kingdom and therefore routinely consume more than their body weight in nectar daily. 
While active during the day they are almost always only a few hours from death unless they continue to feed their voracious appetite.