Eastern purple heron 

Cangak merah

(Ardea purpurea manilensis)

Range: Indian subcontinent, Myanmar, Thailand, Indochina (Vietnam, Laos, and Cambodia), the Malay Peninsula, Singapore, Sumatra, Kalimantan (Borneo), Java, the Lesser Sunda Islands, Sulawesi, and the Philippines, also found in China and the Russian Far East.