Given that predators can make it costly to beg for food, what benefit do begging nestlings derive from their communications?
既然捕食者可以让雏鸟为食物付出巨大代价，那么乞食的雏鸟们到底可以从这种交流方式中得到什么益处呢？
The dietary analysis showed that the nestlings of Egretta garzetta fed on fish and shrimps.
饮食分析表明，白鹭的雏鸟以鱼和虾为食。
She's given an insect to one of her nestlings, but now this black-capped vireo mother has two more hungry mouths to feed.
这只黑头绿鹃妈妈已经喂了一只昆虫给自己一只未离巢的雏鸟，现在她又多了两张嗷嗷待哺的小鸟。
Of the ten nestlings that were examined, all were suspected to have been harmed by junk, and two were certainly killed by it.
他们对10只雏鸟进行分析之后怀疑它们均受到过垃圾的伤害，并且有2只因垃圾伤害而致死。
The growth of nestlings of in little egret and pond heron appeared in s curve.
白鹭和池鹭雏鸟的生长表现为S型生长曲线。
The condition of growth and development of the nestlings and their diet are also reported.
文中还报导了雏鸟的生长发育情况及食性。
The food habit of little egret and cattle egret were analyzed by getting the food disgorged by nestlings.
通过雏鸟呕吐出的食物团分析了白鹭和牛背鹭的食物成分。
Results showed that the growth and development of White-Cheeked Starling's nestlings was divided into three period, the nestlings growth presented the "s" type curve.
结果表明：灰椋鸟雏鸟生长发育分为三个时期，雏鸟生长呈现“S”型曲线。
Results showed that the growth and development of White-Cheeked Starling's nestlings was divided into three period, the nestlings growth presented the "s" type curve.
结果表明：灰椋鸟雏鸟生长发育分为三个时期，雏鸟生长呈现“S”型曲线。
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