The results show that the familiar clutch size of the GreatTits is 10-12 Entries in artificial nest-boxes, the average clutch size 10.
研究表明:人工巢箱内繁殖的大山雀的常见窝卵数为10—12枚,平均窝卵数为10。
2
In the most severe cases the lesions caused by the virus in greattits can prevent the birds from feeding or flying and makes them more vulnerable to predators.
在最严重的情况下,大山雀身上由病毒引起的病变,可剥夺鸟儿进食或飞行的能力,使它们更容易受到捕食。
3
Our data suggested that there are observable functional response of greattits to changes in moth densities but the numerical response caused by breeding are not obvious.