Hey, just got this. Hope this is not classified info.
For the record,
we managed to cover 51 sites around our island with 94 volunteers
& searching & counting every nooks & corners especially those important
sites for heronry & their feeding grounds.
I had forward all the necessary data to Wang Luan Keng for her evaluation
on the current status of Grey & Purple Heron, Black-crowned Night-Heron
& the inclusion of Cattle Egret for this year census to estimate the existing
population of them since the culling & wing-clipping exercises by the authorities.
During this weekend survey, we managed to clock about 10 species of "Ardeidae"
family - Egrets, Herons, Bitterns and a total count of 1162 birds. A wild estimation
of 468 Cattle Egret, 313 Grey Heron, 171 Little Egret, 128 Little Heron, 41 Purple Heron
& 33 Black-Crowned Night-Heron.
As for important areas for herons & egrets sightings are Lower Seletar Dam, Khatib Bongsu,
Kranji Marshes at Neo Tiew Lane, Kranji Dam / Mandai Mudflat, Sungei Punggol,
Sungei Serangoon/Hougang Canal, Sungei Buloh WR/Kranji Nature Trail, Sungei Simpang,
Straits of Johor & North-Eastern Islands.
There was very few sightings of Purple Heron as they prefer streams & reservoirs. Black-crowned
Night-Heron was very difficult to locate except their strong hold at Sungei Serangoon, Khatib Bongsu
West coastal & Jurong areas. There is a need to conduct more regular survey at the Bird Park, Zoo,
Seletar Camp, NSRCC (Tanah Merah & Kranji Courses) to monitor their declining population.
We wish to take this opportunity to thank everyone especially those novice & new friends from
Clubsnap & Nature Photography Society (S'pore) for coming forward & volunteer your time
during this survey.