
Photo: PotMart186 · CC BY-SA 4.0 (May be cropped or resized)
Calidris acuminata
Range
Breeds in Siberia (June to August); winters in Australia (September to March)
The sharp-tailed sandpiper is a small-to-medium migratory wader found mostly in Siberia during the summer breeding period and in Australia for wintering. It is a portly sandpiper with a pot belly, flat back and somewhat drawn-out rear end, and a mottled chestnut-brown upper body with sharp-looking feathers (Wikipedia, general species account).