The Caledonian Crow uses a twig as a tool to extract grubs The woodpecker finch, a bird of the Galapagos, is another consummate toolmaker. It will snap off a twig, trim it to size and use it to ...

a common shape for perching birds. The light-vented bulbul's nest (below), similarly crafted, is largely made from twigs and ...

Birds most closely resembling their wild ancestors ... Breeding: nest is loosely constructed of twigs and leaves, primarily on structures such as window ledges, bridges, and in barns; has 2 ...