butter

先兩個禮拜於南生圍黃昏將近全黑時的行人路邊樹與空地間, 一群小鳥(約2-3吋長), 亂飛和拍翼很密, 能令人錯認是蝴蝶, 牠們在一片小範圍低飛, 很近頭頂, 是在吃昆蟲嗎? 太暗看不出顏色也拍不成照, 又忘了錄下叫聲. 牠們可能是甚麼鳥? 是燕科嗎? 型狀不似雨鳥.

[ Last edited by butter at 13/01/2010 14:00 ]

butter

Quote:

Original posted by subbuteo at 13/01/2010 20:16
Most certainly bats!  You will need a bat detector to hear or record their calls properly- they are great to watch and listen to.

oh, I don't know bats can be this small (only 2-4") ... well, I did hear their call ... short and high-pitched, that's why I knew they're not butterflies. Hmm, I've seen small bats in a tunnel some years ago, those type called like mice. Yet, they're resting when I saw them.

butter

tks for all yr info, pals! By the way, I've come across several of them again just before dark along Kam Tin River on the day of solar eclipse. Last time, I forgot to tell you that its wings looked like an isosceles triangle. This time, I tried very hard to take pics of them but still failed (my arms were sore after lifting my camera for so long)