Dunlin in nonbreeding plumage
D200, handheld, f6.3, 1/1250, ISO 200, 80-400mm VR at 400mm, natural light
Dunlins (Calidris alpina) are one of North America’s most abundant and widespread shorebirds. In winter Dunlins exhibit drab, gray-brown plumage and gather in large flocks on coastal mudflats. They feed by probing for clams, worms, insect larvae, crustaceans, small fish and plants. It also feeds in seasonal freshwater wetlands and in flooded fields.
Dunlin in breeding plumage
D200, handheld, f6.3, 1/800, ISO 160, 70-300mm VR at 300mm, natural light
The Dunlins breeding plumage is much more colorful than in the winter. Once known as “Old Red Back” and “Red-backed Sandpiper” due to the rich chestnut colored feathers on the back. It is unmistakable during breeding season because of the red on the back and the black plumage on its belly. They breed in Artic and sub-Artic moist tundra, near ponds and prefer drier islands for nesting sites. The nest is a simple cup shape lined with lichens, leaves and grasses. They have one brood per year with around 4 eggs.
Similar appearing species are the Stilt and Curlew Sandpipers.
Looking at the images above; in breeding and nonbreeding plumage, it is almost difficult to believe they are the same species.
Mia
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