| 2. | Among 67 species recorded during the investigations , some waterbirds were often recorded such as tachybaptus ruficollis , ardea spp . , charadrius alexandrinus , c . mongolus , pluvialis squatarola , tringa nebularia , t . tetanus , t . stagnatilis , actitis hypoleucos , however , some waterbirds were merely observed at few sites such as anas spp . , chlidonias leucopterus , gelochelidon niloti , c . leschenaultia , limosa limosa , l . lapponica , calidris canutus , c . tenuirostris , c . ferruginea , liemicola falcinellus 通过调查,共记录到越冬水鸟67种,其中小? ? 、鹭类、环颈? 、蒙古沙? 、灰斑? 、青脚鹬、红脚鹬、泽鹬、矶鹬等较为常见;而鸭类、白翅浮鸥、鸥嘴噪鸥以及一些?鹬类如铁嘴沙? 、黑尾塍鹬、斑尾塍鹬、三趾鹬、大滨鹬、弯嘴滨鹬、阔嘴鹬等为狭布种。 |