Which shorebird species migrates from Siberia to Australia, with a wingspan over 1 meter?

The shorebird that migrates from Siberia to Australia with a wingspan over 1 meter is the Far Eastern curlew.

The Far Eastern curlew (Numenius madagascariensis) breeds in northeastern Asia, including Siberia, Kamchatka and Mongolia. Most birds spend the non-breeding season along Australia's coast, using estuaries, beaches and salt marshes. During migration, the Yellow Sea's tidal mudflats are crucial stopover habitat.

At up to 110 centimeters across, it is the largest curlew and probably the world's largest sandpiper. Its strongly downcurved bill, measuring as much as 20.1 centimeters, probes mud for crabs, molluscs and other invertebrates. A common mix-up is the Eurasian curlew, which overlaps its range but usually has a white rump; the Far Eastern curlew has a brown rump and lower back.

Its scientific name reflects an old geographic mistake: “madagascariensis” means “from Madagascar,” although the bird has never been recorded there. Habitat loss around the Yellow Sea has contributed to a decline of more than 65% in tidal flats, and the species is now endangered.