This is a CUTE bird. It's size, shape, color, tweets. I first saw one about a month ago around South Pond. Just a few days ago I saw another 3 around North Pond. I love their song, very recognizable and how I first came across the bird. According to AllAboutBirds.org, one of their calls is a three syllable, "hey, sweetie". The other typical call you can hear is their warning call, "chickadee-dee-dee", The more "dee's" in the call, the more urgent the warning! I love everything about the black-capped chickadee!