Active, creeping, vocal. Common across much of the US, Canada and Mexico year-round. Prefers mature woodlands; common at feeders. Small with and solid with a long chisel bill; blue-gray back, white breast and black cap and nape. Frequently gives nasal “honk”. Creeps along trunks and branches to feed primarily on insects, as well as seeds and nuts, which they may wedge into bark and hammer to open. Often use existing nest holes, and may use nest boxes. Lifespan up to 9 years. Population ~ 8.3 million and stable.