Darwin's finches on the Galapagos Islands will use little sticks as spears to fish out caterpillars and beetle larvae that are hiding underneath the bark of plants.
In a neighbouring brake a finch was trying to sing; but the wind blew under his feathers till they stood on end, twisted round his little tail, and made him give up his song.
It's completely absorbing: we listen out as foraging flocks move through forests and learn about different birds' characters and calls, from the alarm cry of the wren to the sharp contact call of the chaffinch.