n. - A northern duck (Dafila acuta), native of both continents.
The adult male has a long, tapering tail. Called also gray duck,
piketail, piket-tail, spike-tail, split-tail, springtail, sea pheasant,
and gray widgeon.
n. - The sharp-tailed grouse of the great plains and Rocky
Mountains (Pediocaetes phasianellus); -- called also pintailed grouse,
pintailed chicken, springtail, and sharptail.