The large bird in the background is a saddlebill stork. Notice the small fish suspended in air in the birds bill.
The largest bird is a saddlebill stork, and the next largest are yellowbill storks. There re numerous egrets. The one in the foreground at left has speared a fish.
A plethora of pelicans (plus a few yellowbill storks and even a sacred ibis at the left in the foreground).