The cats and I observed the weirdest thing this morning:  a chipmunk was sitting happily on one of the semi-rotted fence posts by our living room, just minding his own business, cleaning his face, being generally chipmunk-mellow.

And then the chickadee came along.  This chickadee was enraged by the chipmunk’s presence, and kept dive-bombing the chipmunk, going directly for the head each time.

Finally the chipmunk had enough and ran away.  And the chickadee disappeared, too.  Weird.