Agree that smoke screen and making expansion of existing airports look more attractive (or less offensive) seem the most likely reasons for attempting to plonk an international airport into a bird sanctuary. (Well, if you don't want it there we'll have to build a 3rd runway at LHR). .. .Can anyone enlighten me as to where a 3rd (technically 6th & 7th) runway could / would be built at Heathrow, and for what purpose? I just can't see where they could put it!. .. .Cheers. .. .SD