Carolina Wren

Such cute little birds, these Carolina Wrens. They're habituated to humans, are curious little things and are very fond of BarkButter ! They like to check out the potted plants on the patio for tasty, six-legged tidbits and then they'll usually hop on over to the sliding glass door and peer into the house! 
The tiny Carolina Wren has an impressive repertoire as this YouTube video demonstrates:
Carolina Wren Singing & Call Sounds
I never tire of hearing them!  :)