上海地区鸟类新记录3种:史氏蝗莺、斑背大尾莺、钝翅苇莺

Three New Records of Birds in Shanghai:Locustella pleskei (Pleske's Warbler),Megalurus pryeri(Japanese Swamp Warbler) and Acrocephalus concinens (Blunt-winged Paddyfield Warbler)

2004年9月至2005年7月,在上海崇明东滩鸟类自然保护区发现上海地区鸟类新记录3种:史氏蝗莺(Locustella pleskei)、斑背大尾莺(Megalurus pryeri)、钝翅苇莺(Acrocephalus concinens).史氏蝗莺为旅鸟,秋季在芦苇群落中栖息;斑背大尾莺和钝翅苇莺为夏候鸟,在芦苇和互花米草群落中栖息.班背大尾莺在互花米草群落中营巢,其雄鸟在调查区域内的密度为0.5对/公顷.新记录的发现可能是由于过去调查遗漏或是由于环境变化导致的鸟种迁入等原因造成的.

Three new record of bird species in Shanghai,xrustella pleskei（Pleske＇ s Warbler ）, Megalurus pryeri （ Japanese Swamp Warbler） and Acrocephalus comcinens（Blunt-winged Paddyfield Warbler ）, were recorded at Chongming Dongtan Migratory Bird Nature Reserve of Shanghai during field surveys from September 2004 to July 2005. Pleske＇ s Warbler was a passenger bird in Shanghai,it was recorded in Phragmites australis communities; Japanese Swamp Warbler and Bluntwinged Paddyfield Warbler were summer migrants in Shanghai： they were recorded in both P. australis and S. alterniflora communities. A nest of Japanese Swamp Warbler was also found in S. alterniflora ectnmunity. The density of the males Japanese Swamp Warbler in one hectare was 0.5 in study area. The immigration of new species after environmental changes and the incompleteness of previous surveys could be two possible reasons for the new records of birds.