Prints on the patio

I'm really hoping these footprints weren't made at the same time, although there doesn't appear to be any evidence of anything untoward, such as loose feathers. Or blood.

And the birds seem unperterbed by the disturbing prints on the patio. They've been going at the feeders like the clappers. Sometimes I wonder how they manage to keep flying with all the fat balls they're chowing down on.