My first Pond Heron this season - Ardeola sp

This is the first record shot of Pond Heron at my backyard, this season.

There are three Pond Heron species in Malaysia;-
1. Chinese Pond-Heron (Ardeola bacchus) - Migrant
2. Indian Pond-Heron (Ardeola grayii) - Vagrant
3. Javan Pond-Heron (Ardeola speciosa) - Vagrant
With this non-breeding plumage, we can't differentiate it.