Called also neonate and newborn. premature infant (preterm infant) one born before a gestational age of 37 completed weeks (259 days). The duration of gestation is measured from the first day of the last menstrual period and is expressed in completed days or weeks.
Answer: Birds pluck their feathers for several reasons. In the wild, they use plucked feathers to line their nests during breeding season. Many bird feathers also come out as a bird performs its normal preening and grooming routine.In captivity, however, a plucking bird can be a sign of veterinary or environmental problems.f you suspect that your bird has been plucking its feathers, the best advice is to get your bird to an avian vet as quickly as possible. If the vet determines your bird to be free of PBFD or other medical problems, then your bird's plucking is most likely due to an environmental issue.
BY JONATHAN BRITTON. Birds make their own nest by weaving a bunch of sticks together and they use their feathers, too. Some birds make there nest upside down to keep the predators, like snakes, out. The female birds eat the baby droppings and that keeps the nest clean. Birds use feathers to fly. If the outer layer of feathers gets damaged, the birds will not be able to fly. Birds don't have arms, but they have feet that they use to cling to branches. Birds eat all kinds of things like worms, mice, rats, snakes, and some even eat dead animals. Birds feed their young by eating a worm and then they regurgitate the semi-chewed up worm into the little bird's mouth.