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.
Parrots are often called hookbills, which is an avicultural term based on the shape of the beak or bill. This distinguishes parrots from softbills and other birds, such as doves and finches.The function of the parrot beak is for climbing, as well as manipulating and crushing objects.n other birds, the upper beak is fused to the skull and does not move. Under the keratin covering, the beak has an excellent blood supply and a network of nerve endings, which provide parrots an amazing tactile sensory ability. The most sensitive area is at the tip of the upper beak (Figure 4 in slideshow).