摘要
灰沙燕在东北及内蒙古为夏候鸟 ,喜栖于湖泊、泡沼和江河的泥质沙滩或附近的土崖上 ,筑巢于水边的沙质硬土悬壁上。横向巢间距为 1～ 11cm (5 90± 2 4 8,n =73) ,纵向巢间距为 1～ 18cm (8 4 7± 4 4 1,n =6 0 ) ,密集处巢密度为 32 75± 3 2 0 /m2 (n =6 0 ) ,洞穴长度为 6 0～ 130cm (89 35± 18 2 7,n =2 5 ) ,巢窝大小为cm :(14～ 17)× (12～ 14) ,(15 0± 1 2 2 )× (12 8± 0 84 ) ,n =2 5。
Bank Swallow (Riparia riparia) is a summer bird in Inner Mongolia and Northeast China.They breed in the banks of Rivers and lakes.The distance of nests are 1-11 cm(5 90±2 48,n=73) in flat,and 1-18 cm(8 47±4 41,n=60) in plumb.The density of nests is 32 75±3 20 nests/m 2 (n=60).THe length of burrow is 60-130 cm(89 35±18 27,n=25).The nest size is cm:(14-17)×(12-14),(15 0±1 22)×(12 8±0 84),n=25.
出处
《国土与自然资源研究》
2001年第4期74-75,共2页
Territory & Natural Resources Study
关键词
灰沙燕
巢结构
巢区
胡列也吐
Riparia riparia
structure of nest
nest area
Huret
