A quick trot around the 'Buffalo Fields' revealed a female Grey Bushchat today.
Others seen on the mosaic of buidling waste included:
Cattle Egret x 4
Wood Sandpiper x 2
Green Sandpipper x1
Richard's Pipit x 1
White Wagtatil x 4
Yellow Wagtail x2
Common Stonechat x1
A herd of 25 Buffalo (including at least 4 calves) were present in the southern end of the site.
I'm not really sure that Kam Tin now counts as a "Other hotspot" now, given the amount of filling that has taken place.