Its not them just flocking together, its the most amazing sight like something from a foreign land, they swarm and dive in perfect harmony, hundreds of them tightly packed together...absolutley breathtaking.
MOLL.
When in Australia last year I parked the camper near a park one evening to have a strech and heard the most amazing noise, looking up in the trees above was a group of several hundred fruit bats Would have loved to have seen them fly off together