Five species including Turdus potiocephalus, N. nycticorax, etc. tended to build nests at tall trees, and the nests for the whole bird community increased with the mean tree height.
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- 乌鸫、夜鹭等5种鸟倾向于在高树上筑巢,因此,整个鸟类群落的巢数随平均树高增加而增加。