May be we can help raptors migrating crossing the Straits of Malacca every year. On the second week of March (+-) every year the birds are crossing. The bridge may consider those raptors too.

http://www.thestar.com.my/News/Nation/2013/10/16/Malacca-revives-straits-bridge-project-Full-details-will-be-revealed-when-all-mechanisms-in-place-sa.aspx