Red-necked Stint (Calidris ruficollis)

Red-necked Stint

[order] CHARADRIIFORMES | [family] Scolopacidae | [latin] Calidris ruficollis | [UK] Red-necked Stint | [FR] Becasseau a col roux | [DE] Rotkehl-Strandlaufer | [ES] Correlimos Cuellirrojo | [NL] Roodkeelstrandloper

Subspecies

Monotypic species

Physical charateristics

Chestnut lower face, throat and upper breast. White around bill base and on part of supercilium. Crown and upperparts have chestnut, black and white markings contrasting with grey upperwing. Underparts white.
Resembles C. minutaa , but slightly larger.Slightly shorter legs and rather longer wings. Bill shorter and Thicker.
Female averages slightly larger in wing and bill.

Listen to the sound of Red-necked Stint

[audio:http://www.aviflevoland.nl/sounddb/R/Red-necked Stint.mp3]

Copyright remark: Most sounds derived from xeno-canto

wingspan min.: 35 cm wingspan max.: 38 cm
size min.: 13 cm size max.: 16 cm
incubation min.: 21 days incubation max.: 23 days
fledging min.: 0 days fledging max.: 23 days
broods: 1   eggs min.: 3  
      eggs max.: 4  

Range

Eurasia : Northeast

Habitat

Low altitude montane tundra in subalpine belt, on mossy and scrubby tundra, usually in rather dry and raised areas.
During non-breeding season, mostly coastal, on intertidal mudflats, shelltered inlets, bays and lagoons, but also commonly on wide variety of freshwater, brackish and saltwater wetlands. Occasionally on sandy beaches and rocky shorelines.

Reproduction

Egg layng in June-July. Pairs bond Monogamous. Low degree of site fidelity. Nest is a shallow depression lined with leaves and grass. 4 eggs are laid in a single brood, but replacement clutches are recorded. Incubation 20-22 days, by both parents. Female leaves soon after hatching and male usually tends chicks up to fledging.

Feeding habits

On breeding season mainly beetles, insect larvae, Hymenoptera and tiny seeds. May forage far from nest in wet habitat.
Outside breeding season, small invertebrates, such as polychadgd worms, crustaceans, insects and molluscs, also seeds.
Constant pecking motion, like C. minutaa, probes in sediment to depth 2 cm, or jabs, also gleans.
Feeds in dense flocks. Birds spread out during feeding, but come together when flushed.

Conservation

This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend is not known, but the population is not believed to be decreasing sufficiently rapidly to approach the thresholds under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Red-necked Stint status Least Concern

Migration

Migratory. Probably moves in large flocks. uses several stopovers, mostly on coasts of Japan, Korea, SE China, Taiwan, Hong Kong, Vietnam, Malaysia, Indonesia, New Guinea, Philippines and W Micronesia; migrating flocks crossing Pacific often stage on islands. Some Siberian birds move overland and cross Krasnoyarsk, Irkutsk and Buryatskaya regions; some cross Mongolia, Manchuria and Ussuriland; others W to E Kazakhstan. Most of population breeding in Alaska appears to pass through Aleutian and Pribilof Is to migrate with Siberian population; some spend boreal winter in the Americas. Australia reached by late Aug and Arrivals continue until Nov; juveniles arrive latest and may use different route; departure mainly Mar-Apr. Immatures usually remain in non-breeding range throughout 1st year, often moving inland after rains fill wetlands. Adults show high fidelity between years to non-breeding sites.

Distribution map

Red-necked Stint distribution range map

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