Seed hopper

You can watch a dunnock hopping forward, pecking all day under bushes without apparently picking up anything. You'd think it would struggle to survive. 

Dunnocks mostly eat insects, but will eat nettle, grass and weed seeds in the winter. A dunnock has to spend nearly all its time in winter feeding, just to survive the long, cold nights. And if you don't think there are enough seeds to keep a dunnock alive, just think where the weeds in your garden come from - all from seeds that dunnocks and other birds missed!