Hand-colored, unmounted lantern slide of a barn swallow in its nest. Original negative: OrgLot369_FinleyA2360.

Bank swallow’s nest in a bank.

Cliff swallow nests.

Cliff swallow nests on bank.

Cliff swallow nests made from mud in the eaves of a wood building.

Cliff swallow nests made from mud in the eaves of a wood building.

Four rough-winged swallows on a tree trunk, one in a nest cavity.

Four rough-winged swallows on a tree trunk, one in a nest cavity.