I saw this tufted titmouse, Baeolophus bicolor, in Central Park on one of those spring-like days last week. Cute, right? It was picking up seeds someone had left on the ground. Click to enlarge.
The bird preferentially selected sunflower seeds, like the one it's holding in this picture. How to open a sunflower seed if you're a titmouse? The same way a blue jay does it: fly away to a branch, hold the nut in both feet and jab it with your beak until it breaks.
Oh. And don't stop too long to watch the photographer.