Far Eastern Curlew

The Far Eastern curlew is most similar in appearance to the long-billed curlew but slightly larger. It is mostly brown and differs from other curlews in its plain, unpatterned brown underwing and brown rump. It is the largest curlew and probably the world's largest sandpiper, 60–66 centimetres long and 110 centimetres across the wings, weighing 390–1,350 grams, a range equalled by the Eurasian curlew; females are on average about 100 grams heavier than males. (Wikipedia, general species account)

It spends the breeding season in northeastern Asia, including Siberia to Kamchatka, and Mongolia, in marshy and swampy wetlands and on lakeshores. Most individuals spend the non-breeding season in coastal Australia, with some wintering in Indonesia, Thailand, the Philippines and New Zealand at estuaries, beaches and salt marshes, and a few as far north as southern China and Taiwan. On migration it commonly stops over on the mudflats of the Yellow Sea and on the coasts of Japan. (Wikipedia, general species account)