Every Spring wildlife filmmaker Hannah Stitfall heads out to look for long-tailed tits. She hopes to film them building their nests - intricate, domed structures built out of moss, feathers and spider silk. Unlike many other small birds, the long-tailed tit is capable of cooperative breeding, and will help relatives raise their chicks if their own don't survive. For Hannah the long-tailed tit is one of the quiet wonders of the countryside, and a reminder that even the smallest creatures live fascinating lives.

Produced by Sophie Anton for BBC Audio in Bristol.