Last night when I came home, there was a bluejay sitting on a low branch of an oak tree in my front yard. The bird was trying to open an acorn by beating it against the branch. While it was doing this, a cat came into the yard and crept up under the branch. The bird didnŐt notice it, but kept on working at the acorn. The cat decided there was no future in trying to catch the jay and found an acorn to eat for itself.