Okay, now you’re just messing with me. I have known lots and lots of squirrels in my life, and I’ve never seen one that could catch a bird. Let alone eat it, feathers and all. That picture has got to be fotoshop. If squirrels were that carnivorous, then they’d be eating the little anole lizards that scamper across the sidewalks all over the South. They’re a lot easier to catch than birds, and they’re more juicy.
Why couldn’t they catch a bird? They live in trees and are fast as lightning.
Do an image search for squirrel eating bird and see what you get.