关于燕子的种种——三月初七我的老家在北方,房檐宽大,檐下总有两个燕巢,分别在两个屋门的上方——插句题外话,燕子为何一定要在门的正上方建巢?我一直没想明白,有明白的侠友请告诉我。每见燕子归来,便知春天已到。暑假坐在院里乘凉,看燕子在沉闷的天气里飞来飞去觅食,更不时回巢喂那啾啾然毛茸茸的雏鸟,这是消暑必备的节目。而当雏燕羽翼 On the swallow all kinds - on the seventh day of March my home in the north, the eaves wide, there are always two nests under the eaves, respectively, at the top of two house doors - insert sentence digression, why swallows must be in the door is The top of the nest? I have never wanted to understand, have a clear knight please tell me. Every time the swallows come back, they know that spring has come. Sitting in the summer vacation by the shade of the courtyard, watching the swallows fly in boring weather foraging, but sometimes back to the nest to feed the chirp furry nestlings, this is the necessary heatstroke program. When Chu Yan feather wings