中文摘要：

四川林鹗（Strix davidi）中国特产鸟类，目前已知仅分布于四川西部、甘肃南部的高山针叶林中，其生态学资料极为缺乏，尚无其巢址的报道。1866年法国博物学家Armand David首次在四川的森林中猎获了这种鹗类；1875年，Sharpe将它命名为长尾林鹗的一个亚种S．uralensis davidi。四川林鹗在体型、形态及叫声上与长尾林鹗非常相似，但鉴于它与遍布于欧亚大陆北部森林中的长尾林鹗长期隔离，目前国际重要鸟类专著已将它单独列为一个种。

英文摘要：

Supported by BP Conservation Programme, we mounted 40 nest for Strix davidi in suitable habitat at Lianhuashan Natural Reserve, Gansu in 2002 - 2003. Those nest boxes enable us close observing of breeding success of this rare species in 2005 for the very first time. The first pair bred laid 2 eggs in a nest box and both young were fledged. In May 2006, we monitored 3 territorial males in an area around 500 hm^2 by playback method. In mid-June, we found droppings and pellets at the side of a vertical precipice, with hint that an active breeding site there. Two young owls were detected in the crown of a tall spruce tree, situated directly at the base the precipice, on which was thought to be their nest site.