Chinese Pond Heron (Ardeola bacchus) is reported to eat small frogs, aquatic invertebrates, fish, molluscs, terrestrial insects and worms.
Daniel Chia photographed the heron catching an earthworm from the field along Port Road, just outside Carpark C of Singapore’s Labrador Nature Reserve.
Picking up the worm from the damp ground was not a problem. Trying to pass it down its long bill for swallowing was. Worms are slippery and the heron had quite a time trying to swallow it. As soon as the worm reached the end of the bill, it wriggled out as apparently there may be less of a grip there than at the bill tip. Persistency prevailed and after many attempts, the heron finally managed to swallow the worm.