Feral Domestic duck. Big, white, and hefty. It's probably an American Peken.
It was on the ground and crows were circling it so we took it in and fed it. It has a pretty song and a yellow belly. Not sure if it's a baby Robin or some type of kingbird.
Small grey crustacean, maybe the size of one of my fingernails, was dug up by someone at the beach and scurried quickly for a bit