Eastern Spot-Billed Duck

 

The Spot-billed Duck (Anas poecilorhyncha) also known as the Spotbill, is a dabbling duck which breeds in tropical and eastern Asia. It has three subspecies: the Indian Spot-billed Duck (A. poecilorhyncha poecilorhyncha), Eastern Spot-billed Duck (A. poecilorhyncha zonorhyncha), and Burmese Spot-billed Duck (A. poecilorhyncha haringtoni).
This duck is resident in the southern part of its range from Pakistan and India to southern Japan, but the northern subspecies, the Eastern Spot-billed Duck (A. p. zonorhyncha), is migratory, wintering in Southeast Asia. It is quite gregarious outside the breeding season and forms small flocks. The northernmost populations have expanded their range northwards by more than 500 km since the early 20th century, possibly in reaction to global warming.