I used this image and counted approximately 5,500 Black-tailed Godwit in this flock! Now, would Boris Johnson, Clive Lawrence from DRINK, and Lord Foster kindly explain to me how you re-programme each bird (that is genetically encoded to migrate to the Thames Estuary every winter), to fly somewhere else and stay there? They keep saying this is a simple matter, moving the birds, that will permit the building of an estuary hub airport!