The willow tit

A small resident passerine with a black cap, brown back and white underside, the willow or alpine tit lives in the mountain forests. It selects a trunk with rotten wood in which to built its nest, because its beak is not designed for pecking into very solid trunks. This tit is very similar to the marsh tit, which tends to live below 1,400 metres. To distinguish between them, you have to listen carefully to the singing and calls of these two birds.