摘要
对大山雀（Ｐａｒｕｓｍａｊｏｒ）１８巢和沼泽山雀（Ｐａｒｕｓｐａｌｕｓｔｒｉｓ）１５巢的洞因子特征作了较详细的研究．研究表明，大山雀和沼泽山雀的筑巢优势树种分别是白皮柳和糠椴；在选择洞口方向上，沼泽山雀的洞口方向较集中于西南方向，而大山雀的洞口方向较分散．
The nest site characteristics of the 18 Great Tits and 15 mash Tits Were studied exhaustively.The results showed,superior tree species for Great Tits and Mash Tits are Salix pierotii and Tilla mand shurica respectively.The Mash Tits' cavities entrance direction centralize in southwest and the Great Tits' are dispersed.
