Photo by Greg Wagner, via Flickr.
Theropods just don't get much cuter than this. The Cornell Lab of Ornithology's All About Birds site lists some pretty incredible facts about this common visitor to bird feeders, especially regarding their cunning little brains. Take this one:
The Black-capped Chickadee hides seeds and other food items to eat later. Each item is placed in a different spot and the chickadee can remember thousands of hiding places.Or this one:
Every autumn Black-capped Chickadees allow brain neurons containing old information to die, replacing them with new neurons so they can adapt to changes in their social flocks and environment even with their tiny brains.Pretty awesome, and there's more where that come from.