After 22 to 28 days in the nest (depending on the owner's preference) the young birds are removed and placed in a section of a large loft or in a smaller loft built for the purpose. After a few days of learning how to locate the water and eating by themselves they are allowed to wander out of the loft and peck around in the garden, while doing this they are constantly observing their surroundings and becoming familiar with them. At about age six to seven weeks the birds will begin taking off, flying in very small circles around their loft and owner's house. As their confidence grows they gradually wander farther and farther from home until they are out of sight and can remain so for as much as two hours before returning. When a few trainers fly their pigeons in the same area, these flying "batches" (as flocks of pigeons are called) can number in the thousands. It does not, however, help them much in relation to finding their home from long distances away, a fundamental of pigeon racing. As confident flyers, the young pigeons are taken on progressively longer 'training tosses', driven a distance away from their home and released. This method of training is a way to condition the birds mentally and physically to prepare them for the races. This practice of loft flying and tossing continues throughout a pigeon's career to keep their homing instincts sharp.