Stint (Red-necked) Calidris ruficollis
Species: C. ruficollis
Binomial name: Calidris ruficollis
Synonyms: Erolia ruficollis
Common name: Red-necked stint
The Calidris ruficollis (Red-necked stint) is a small, long-distance migrant wader that breeds along the Arctic littoral of eastern Eurasia and spending the non-breeding season in South East Asia and Australasia as far south as Tasmania and New Zealand.
Up to 200 reach New Zealand inhabiting mainly coastal sites such the mudflats of estuaries and saltmarsh margins of coastal lakes. About 50 don’t migrate north and stay in New Zealand in the southern winter. They roost at high tide associating with other small waders.
They are among the smallest of the waders being not much smaller than a sparrow. Their body length is 15 cm (bill tip to tail), and weigh 30 g. It has a fine bill tip, dark legs and unwebbed toes. It feeds on small marine invertebrates and insects with a rapid picking motion.
Thanks to Wikipedia for text and information https://creativecommons.org/licenses/by-sa/3.0/