The bird's mud nest is usually sited below the eaves of buildings.

This delightful bird seeks out our houses to build their mud nests under the eaves.

The mud insect nests that bulged from trees exploded.

It is wilder, too, taken over by various insect species that constructed elaborate mud nests here.

The Ptyonoprogne species construct open mud nests and therefore belong to the last group.

They build conical mud nests and lay 3-6 eggs.

A terrible screaming came from inside the mud nest.

Some house martins make mud nests under the overhangs of the chalk cliffs.

A raised mud nest is built for a single chick, with the egg laid in late December or early January.

The Cecropsis species construct a closed mud nest and therefore belong to the latter group.