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A European species selects snail shells for its nest, wherein it builds its earthen cells, while other species nidificate under stones.

In July and August not less than thirty species of waterfowl nidificate.

Like the two species of Acridotheres, it nidificates by itself in the holes of trees, lining the cavity with bits of leaves.

During the breeding season it associates in large flocks along the banks of the Groomti, where it nidificates in colonies in holes in the banks of the river.

It nidificates in June and July, and it would appear that both the birds, male and female, engage in the construction of the nest.