flicker

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flick·er

(flik'ĕr),
The visual sensation caused by stimulation of the retina by a series of intermittent light flashes occurring at a certain rate.
See also: flicker fusion, critical flicker fusion frequency.

flicker

A rapid, transient and intermittent photic discharge sensed in a visual field.

flicker

The visual sensation of alternating intervals of brightness caused by rhythmic interruption of light stimuli.

flicker

Perception produced when the retina is stimulated by an intermittent light stimulus which fluctuates between a frequency of a few hertz and the critical fusion frequency.
References in periodicals archive ?
For example, Northern Flickers and Hairy Woodpeckers aggressively defended their cavities from Red-headed Woodpeckers.
Potential host species included Northern Flicker (Colaptes auratus), Hairy Woodpecker, Eastern Bluebird (Sialia sialis), Mountain Bluebird (S.
Species Logged Non-logged Northern Flicker 6 6 Red-headed Woodpecker 20 (6) (a) 11 (3) (a) Hairy Woodpecker 7 13 Eastern Bluebird 3 5 Mountain Bluebird 5 10 European Starling 2 3 (a) Red-headed Woodpecker nests acquired by usurpation.
Ephemeral food resources and high conspecific densities as factors explaining lack of feeding territories in Northern Flickers (Colaptes auratus).
Assortative mating by color in a population of hybrid Northern Flickers.
Correlates of parental care in Northern Flickers Colaptes auratus: do the sexes contribute equally while provisioning young?

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