Many birds build their nests in trees. Trees provide plenty of materials for the bird to build its nest.

Deciduous trees lose their leaves in the autumn and the fallen rotting leaves provide a rich food supply and habitat for thousands of tiny creatures.

The tree provides the bird with a rich source of food. There are insects on the tree and worms and insects on the ground below.

The tree also provides the bird with a place of shelter and gives protection against predators.