崖燕也以泥巴筑巢，只是筑成的巢像烤箱，只留一个小圆。
Cliff swallows construct ovenlike nests, also out of mud but with a small round entrance hole.
晚成性幼雏留巢时间的长短也不相同：雀形目鸟类与孵卵日期大致…
To stay late into the nest of chicks is not the same length: passerine birds and hatchery date generally …
晚成性幼雏留巢时间的长短也不相同：雀形目鸟类与孵卵日期大致…
To stay late into the nest of chicks is not the same length: passerine birds and hatchery date generally …
应用推荐