Personally I oppose to the plan. Any plan to build inside the Ramsar site subordinate area would mean a direct reduction of the core area. If the area is identified as having high conservation value, then any mitigation plan after the using part of the land for development is compromising the value of the land.
I would also like to add that in this case, not only is the land important. The sky around is also very important for large soaring raptors in Hong Kong. With tall buildings in the area, the available space for these large raptors would be reduced very significantly. After the tall buildings are in place, I cannot imagine any large Eagles flying right near to the building.
I am not familiar with how the Ramsar Convention operate. For that I have to learn more. For now, any suggestion is welcomed.
HF Cheung