bank swallow

from The Century Dictionary.

• noun Hirundo or Cotile riparia, a very common bird of Europe, Asia, and America, of the family Hirundinidæ: so called from its habit of burrowing in banks to build its nest.

from the GNU version of the Collaborative International Dictionary of English.

• See under 1st bank, n.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun swallow of the northern hemisphere that nests in tunnels dug in clay or sand banks