sand martin

The sand-martin arrives much about the same time with the swallow, and lays, as she does, from four to six white eggs.

Later in the season its numbers are observed to be greatly increased, and it is joined by the Swift and Sand Martin.

Another inhabitant of the banks is the sand-martin, which also likes company in the work of raising a family.

There must be something in the climatic conditions of South India that suits neither this nor the other species of sand-martin.

The sand-martin, the house-martin's cousin, prefers the side of a cliff.