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.
Nystagmus occurs when the part of the brain or inner ear that regulates eye movement and positioning doesnât function correctly. The labyrinth is the outer wall of the inner ear that helps you sense movement and position. It also helps control eye movements. The condition can be either genetic or acquired.