Captive bred pigeons can lay a new batch of eggs every month, but their feral cousins typically produce between two and four broods a year. While pigeons can lay their eggs at any time of year, they are more likely to nest during the spring and summer months, when the weather is warmer.
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.ystagmus is an involuntary condition in which the eyes make rapid, repeated, uncontrolled movements.
Nystagmus from Early in Life. Early onset nystagmus often accompanies vision loss acquired at birth or soon after and may be one of the first signs that a child has a loss of vision. Studies suggest 1 in every 1000 children have nystagmus.