The materials about the number of laying eggs every year, thd alerting and the nestling sex rate are quite different from the records in the old textbooks or the monographs.

• 其中画眉鸟每年产卵窝数、画眉鸟的机警性、窝雏性比等资料，与以往教科书或专著中有关记载颇不相同。