1 Normally flickers lay 6 or 7 eggs.  Cowbirds (which parasitize the nests of other birds) usually lay about six eggs (one each day) in different nests, wait a few days, and then start again. They may lay more than 11-20 eggs per season. A captive female was recording laying 77 eggs, 67 of those in a continuous sequence.
What is nystagmus? Nystagmus is an involuntary condition in which the eyes make rapid, repeated, uncontrolled movements. These eye movements may be in any direction including horizontally, vertically, or rotationally (in a circle). Many people with nystagmus do not experience visual symptoms.
gaze nystagmus nystagmus made apparent by looking to the right or to the left. gaze paretic nystagmus a form of gaze nystagmus seen in patients recovering from central nervous system lesions; the eyes fail to stay fixed to the affected side with a cerebral or pontine lesion. labyrinthine nystagmus vestibular n.