This morning I noticed a Pacific Wren with a peanut piece fly to the door mat outside of my sliding glass door. The door mat has one-inch square holes in it and he/she used the holes to contain the peanut in order to peck at it and eat it. This is the third time I have witnessed this activity over the past few months.

The little wren is obviously smart. Would this be a case of tool using?

Diane Weinstein
Sammamish
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