Oh God,
Not this one again! I remember the one back in March and it caused all sorts of answers to come up. ie, what if all of the birds(geese) were tame and asked to sit still for a while to weigh the aircraft then all takeoff when asked. Or something like that. It was reckoned that the down force from the wings (lift) would exert the same force as the weight of the birds, hence leaving the aircraft same weight.What if the aircraft was pressurised when all of this was going on then someone opened a window? Would it make any difference? Apart from the geeses being sucked out at altitude to fly on their own.