幼鳥可能需要幾小時甚至幾天的時間去破殼 . 幼鳥出生時眼睛完全未張開 , 身上亦甚少羽毛 . 牠們完全依賴父母去生存
新生太陽鸚鵡約6.02 g重 .
父母會照顧新生幼鳥約至 7 - 8 星期大 , 爸爸和媽媽雙方都會給幼鳥餵食 , 牠們會於大約45天長出所有羽毛 , 幼鳥父母會協助牠們介奶 .
於離巢前的數天 , 幼鳥體重會向下調減 10% , 以準備飛行
Females of this species handle incubation alone, only leaving the nest for brief
feeding periods. Males usually guard the nests and remain nearby to keep the
hens company. To protect the nest, birds may puff up their bodies, sway, and
hiss at intruders. Hens may also retain their aggressive behavior after laying,
screaming at and biting anything that gets too close.
It may take anywhere from a few hours to several days for a chick to completely
escape from its egg. Chicks are born altricial, meaning they are blind, mostly
naked, and completely dependent on their parents for food. At the time of
hatching, they are incapable of even holding up their own heads. Although they
grow comparatively slower than other birds, they fledge at ages similar to other
species relative to their growth rate. Hatchlings weigh about 6.02 g, though the
difference in size between the oldest and youngest is considerable.
Hatchlings remain in the nest under the care of their parents for 7 to 8 weeks.
Both mother and father feed the chicks. For the first few days of life, babies
are turned onto their backs for feeding. After ten days, the babies begin to
open their eyes and feather quills break through. It usually takes about
forty-five days for the feathers to grow in completely, after which the young
birds are able to fly. Weaning does not begin until a week or so after fledging.
Weaning is assisted by the parents, who hold food in their beaks and feet for
the babies. During the last few days before leaving the nest, chicks usually
lose about ten percent of their body weight, developing a lighter, more
aerodynamic, and streamlined figure.
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