Flicker /(flĭk"ẽr)/

imp. & p. p. Flickered; p. pr. & vb. n. Flickering

1. To flutter; to flap the wings without flying.

   And flickering on her nest made short essays to sing.

2. To waver unsteadily, like a flame in a current of air, or when about to expire; as, the flickering light.

   The shadows flicker to fro.

1. The act of wavering or of fluttering; fluctuation; sudden and brief increase of brightness; as, the last flicker of the dying flame.
2. The golden-winged woodpecker (Colaptes aurutus); -- so called from its spring note. Called also yellow-hammer, high-holder, pigeon woodpecker, and yucca. (Zool.)

   The cackle of the flicker among the oaks.