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.
Stress. The second most common reason that parrots pluck their feathers is stress. Parrots can become stressed because of lack of attention from their owners, dirty or cramped accommodations, and boredom.According to veterinarian Ron Hines, Some birds literally groom their feathers off for lack of other pastimes..tress. The second most common reason that parrots pluck their feathers is stress. Parrots can become stressed because of lack of attention from their owners, dirty or cramped accommodations, and boredom. According to veterinarian Ron Hines, Some birds literally groom their feathers off for lack of other pastimes..
It can be hard for novice bird owners to understand -- one day your parrot is a sweet, tame, happy member of your family, and the next he or she is acting like a vicious little monster! The most common reason for these sort of personality changes is that your bird is going through a hormonal period due to mating season.Read on to discover some of the most common signs of hormonal behavior in birds, and how to cope until your pet's behavior subsides.t can be hard for novice bird owners to understand -- one day your parrot is a sweet, tame, happy member of your family, and the next he or she is acting like a vicious little monster! The most common reason for these sort of personality changes is that your bird is going through a hormonal period due to mating season.