【摘要】 灰椋鸟、普通鳾、白眉姬鹟为三种习见洞巢鸟,其中灰椋鸟巢为成群分布;普通鳾与白眉姬鹟均为一定领域的随机分布;所有洞巢鸟巢的分布为成群分布。更多还原

【Abstract】 The Grey starling, nuthatch and white - browed flycatcher are threekinds of nest birds, among which, the nests of grey starlings distribute in groups;the nests of nuthatches and white- browed flycatchers distribute randomly in cer-tain area; and all the nests of nest birds distribute in groups.更多还原