Esacus magnirostris; Print; The beach stone-curlew (Esacus magnirostris) also known as beach thick-knee is a large; ground-dwelling bird that occurs in Australasia; the islands of South-east Asia. At 55 cm (22 in) and 1 kg (2.2 lb); it is one of the world's largest shorebirds. At a mean of 1; 032 g (2.275 lb) in males and 1; 000 g (2.2 lb) in females; it the heaviest living member of the Charadriiformes outside of the gull and skua families.; 1700-1880