Species of Thailand
Tringa ochropus, Carolus Linnaeus, 1758
(In Thai: นกชายเลนเขียว)
The green sandpiper (Tringa ochropus) is a small wader (shorebird) of the Old World. The genus name Tringa is the New Latin name given to the green sandpiper by Aldrovandus in 1599 based on Ancient Greek trungas, a thrush-sized, white-rumped, tail-bobbing wading bird mentioned by Aristotle. The specific ochropus is from Ancient Greek okhros, "ochre", and pous, "foot".
The green sandpiper represents an ancient lineage of the genus Tringa; its only close living relative is the solitary sandpiper (T. solitaria). They both have brown wings with little light dots and a delicate but contrasting neck and chest pattern. In addition, both species nest in trees, unlike most other scolopacids.
Given its basal position in Tringa, it is fairly unsurprising that suspected cases of hybridisation between this species and the common sandpiper (A. hypoleucos) of the sister genus Actitis have been reported.
This species is a somewhat plump wader with a dark greenish-brown back and wings, greyish head and breast and otherwise white underparts. The back is spotted white to varying extents, being maximal in the breeding adult, and less in winter and young birds. The legs and short bill are both dark green.
It is conspicuous and characteristically patterned in flight, with the wings dark above and below and a brilliant white rump. The latter feature reliably distinguishes it from the slightly smaller but otherwise very similar solitary sandpiper (T. solitaria) of North America.
In flight it has a characteristic three-note whistle.
Distribution and ecology
It breeds across subarctic Europe and east across the Palearctic and is a migratory bird, wintering in southern Europe, the Indian Subcontinent, Southeast Asia, and tropical Africa. Food is small invertebrate items picked off the mud as this species works steadily around the edges of its chosen pond.
This is not a gregarious species, although sometimes small numbers congregate in suitable feeding areas. Green sandpiper is very much a bird of freshwater, and is often found in sites too restricted for other waders, which tend to like a clear all-round view.
It lays 2–4 eggs in an old tree nest of another species, such as a fieldfare (Turdus pilaris). The clutch takes about three weeks to hatch.
The green sandpiper is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies. Widely distributed and not uncommon, it is not considered a threatened species by the IUCN on a global scale.
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Category / Seasonal Status
Wiki listed status (concerning Thai population): Winter visitor
BCST Category: Recorded in an apparently wild state within the last 50 years
BCST Seasonal status: Non-breeding visitor
- Tringa ochropus
- English: Green sandpiper
- French: Chevalier cul-blanc
- Thai: นกชายเลนเขียว
Least Concern (IUCN3.1)
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