Raising The raising period is 40 days. Parents fold their young in shifts for the first 11 days and no more. While vigilant on sudden attacks by sea mews, they use their wings as a protection from direct sunlight and rain drops and fans the little birds. The younger birds f meal is small fish such as gobies and shrimps. Since the young are born at an interval of two days, they are different in size.
Parents allot a larger portion of meal to smaller ones.
The new-born birds open their eyes on the third day, come to toddle along on the ninth day, and walk on the 14th day. They grow as large as their parents by the 30th day and come to maintain balance by unfolding their wings. Its beak grows to the three-fifths of length of that of the parents by the 40th day. After that, parents take their kids out, teaching them how to fly. Their g family life h continues until winter.