楼燕,隶属于雨燕目雨燕科,60年代在白城有过发现。1686年7—8月和1987年5—8月我们在长春市省林业厅和市人大办公楼门前发现楼燕,报导如下。1986年7月24日在林业厅前发现一种罕见的燕子,随后进行了观测。并发现其巢筑于办公楼雨搭内,巢形与金腰燕的巢相似,呈葫芦状,口小底深,用黄泥筑成外壳,内用杂草及羽毛垫成。巢口5×8厘米,巢深26厘米。发现时,巢内有2只雏鸟。每天早5时左右亲鸟即出飞觅食育雏,晚间20时才停止活动,每天喂雏达15小时160余次。至7月29日,幼鸟出飞,在亲 Lou Yan, belonging to the Department of Swift the Swifts, 60 years in Baicheng have been found. From July to August in 1986 and from May to August in 1987, we found Lou Yan in front of Changchun Provincial Department of Forestry and the Municipal People’s Congress office, as follows. A rare swallow was found before the Forestry Department on July 24, 1986, and observations were made subsequently. And found that the nest built in the office building rain ride, nests and nest of gold waist swallows similar to a gourd-like, small mouth deep, built with yellow mud shell, with weeds and feathers pad into. Nest 5 × 8 cm, 26 cm deep nest. When found, the nest has 2 nestlings. Around 5 am every day, the pro-birds fly out to feed their young chicks and stop their activities at 20 o’clock in the morning. Feeding more than 160 chicks a day reaches 15 hours in the morning. To July 29, young birds fly, in the pro