Vietnam Adventure Tours, Vietnam Adventure Travel: Trekking, Bike Tours

Broad-billed sandpiper (Rẽ mỏ rộng, Calidris falcinellus)
Some research suggests that it should rather go into the genus Philomachus.

The broad-billed sandpiper (Calidris falcinellus) is a small, wading bird of the family Scolopacidae.
This bird species is strongly migratory, spending the non-breeding season from easternmost Africa, through south and south-east Asia to Australasia.

Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

The word Scolopacidae is New Latin, derived from the genus name Scolopax (Latin for "snipe" or "woodcock") and the common zoological suffix for family names, -idae.

The genus name Calidris is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds.
The specific name falcinella is from falx, falcis, "a sickle. 

Calidris is a genus of Arctic-breeding, strongly migratory wading birds in the family Scolopacidae. 
The genus name is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds.

1/ Spoon-billed sandpiper (Rẽ mỏ thìa, Calidris pygmaea)

2/ Curlew sandpiper (Rẽ bụng nâu, Calidris ferruginea)
The specific ferruginea is from Latin ferrugo, ferruginis, "iron rust" referring to its colour in breeding plumage.

3/ Red-necked stint (Rẽ cổ hung, Calidris ruficollis) 
The specific ruficollis is from Latin rufus, "red" and collum, "neck".

4/ Sanderling (Rẽ cổ xám, Calidris alba) 
The name derives from Old English sand-yrðling, "sand-ploughman".
The specific, alba, is Latin for "white".

5/ Sharp-tailed sandpiper (Rẽ đuôi nhọn, Calidris acuminata)
The specific acuminata is from Latin acuminatus, 'sharp, pointed'.

6/ Ruff (Rẽ lớn, Calidris pugnax)
formerly placed in different genera and was known as: Tringa pugnax, Philomachus pugnax
The specific epithet refers to the aggressive behaviour of the bird at its mating arenas — pugnax from the Latin term for "combative".

7/ Great knot (Rẽ lớn ngực đốm, Calidris tenuirostris)
The specific tenuirostris is from Latin tenuis "slender" and rostrum "bill".

8/ Temminck's stint (Rẽ Lưng đen, Calidris temminckii)
The specific epithet is from the name of a Dutch naturalist Coenraad Jacob Temminck.

9/ Red knot or just knot (Rẽ lưng nâu, Calidris canutus)

10/ Broad-billed sandpiper (Rẽ mỏ rộng, Calidris falcinellus)
The specific name falcinella is from falx, falcis, "a sickle. 
Some research suggests that it should rather go into the genus Philomachus.

11/ Long-toed stint (Rẽ ngón dài, Calidris subminuta) 
The specific subminuta is from Latin sub, "near to" and minuta, "small" from its similarity to the little stint, Calidris minuta.

12/ Little stint (Rẽ nhỏ, Calidris minuta or Erolia minuta)
The specific minuta is Latin for "small.

13/ Dunlin (Rẽ trán trắng, Calidris alpina)
formerly placed in the genus Erolia.
The specific alpina is from Latin and means "of high mountains", in this case referring to the Alps.
The English name derives from dun, "dull brown", with the suffix -ling, meaning a person or thing with the given quality.

Curlew Sandpiper (Calidris ferruginea, Rẽ bụng nâu, Dẽ mỏ cong) is a small wader, Scolopacidae family, Calidris genus.

The bird is a pass-through winter bird, commonly sighted at the Xuan Thuy National Park.

Dunlin (Rẽ trán trắng, Calidris alpina)
formerly placed in the genus Erolia.

Dunlin (Calidris alpina, Rẽ trán trắng) is a small wader, Scolopacidae family, Calidris genus.
The bird is a pass-through winter bird, commonly sighted at the Xuan Thuy National Park.

Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

The word Scolopacidae is New Latin, derived from the genus name Scolopax (Latin for "snipe" or "woodcock") and the common zoological suffix for family names, -idae.

The genus name Calidris is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds.
The specific alpina is from Latin and means "of high mountains", in this case referring to the Alps.

The English name derives from dun, "dull brown", with the suffix -ling, meaning a person or thing with the given quality.

Great knot (Rẽ lớn ngực đốm, Calidris tenuirostris)

The great knot (Calidris tenuirostris) is a small wader in the genus Calidris of the family Scolopacidae. 
This bird species is migratory; it breeds in eastern Siberia, Russia, and flies to southern Asia and Australia in the winter in northern hemisphere.

Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

The word Scolopacidae is New Latin, derived from the genus name Scolopax (Latin for "snipe" or "woodcock") and the common zoological suffix for family names, -idae.

The genus name Calidris is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds.

The specific tenuirostris is from Latin tenuis "slender" and rostrum "bill".

Little stint (Rẽ nhỏ, Calidris minuta or Erolia minuta)

The little stint (Calidris minuta) is a very small wader. 
This bird species breeds in arctic Europe and Asia, and is a long-distance migrant, wintering south to Africa and south Asia.

Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

The bird is a visiting bird, yet uncommonly sighted at the Xuan Thuy National Park, northern Vietnam.

The word Scolopacidae is New Latin, derived from the genus name Scolopax (Latin for "snipe" or "woodcock") and the common zoological suffix for family names, -idae.

The genus name Calidris is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds.

The specific minuta is Latin for "small.

Long-toed stint (Rẽ ngón dài, Calidris subminuta) 

The long-toed stint (Calidris subminuta) is a small wader of the family Scolopacidae.
The bird breeds across northern Asia and is strongly migratory, wintering in south and south east Asia and Australasia.

Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

The word Scolopacidae is New Latin, derived from the genus name Scolopax (Latin for "snipe" or "woodcock") and the common zoological suffix for family names, -idae.

The genus name Calidris is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds.
The specific subminuta is from Latin sub, "near to" and minuta, "small" from its similarity to the little stint, Calidris minuta.

The Red Knot (Calidris canutus, Rẽ lưng nâu) is in Scolopacidae  Family (Sandpiper), Calidris genus.

Red-necked stint (Rẽ cổ hung, Calidris ruficollis) 

The red-necked stint (Calidris ruficollis) is a small migratory wader that breeds in northeast Russia and spends the non-breeding season along the coastlines of Southeast Asia and Australasia.

Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

The word Scolopacidae is New Latin, derived from the genus name Scolopax (Latin for "snipe" or "woodcock") and the common zoological suffix for family names, -idae.

The genus name Calidris is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds.

The specific ruficollis is from Latin rufus, "red" and collum, "neck".

Ruff (Calidris pugnax, Rẽ lớn ngực đốm) is a medium-sized wader, Scolopacidae family, Calidris genus.

The bird is a visiting winter bird, uncommonly sighted at the Xuan Thuy National Park.

The Sanderling (Calidris alba, Rẽ cổ xám) is in Scolopacidae  Family (Sandpiper), Calidris genus.

Sharp-tailed Sandpiper (Calidris acuminata, Rẽ đuôi nhọn) is a small wader, Scolopacidae family, Calidris genus.

The bird is a visiting winter bird, uncommonly sighted at the Xuan Thuy National Park.

Spoon-billed sandpiper (Rẽ mỏ thìa, Calidris pygmeus, Calidris pygmaea), a critically threatened species, is a small wader which breeds in north-eastern Russia and winters in Southeast Asia. The birds are frequently sighted birds at the Xuan Thuy National Park in winter.

Temminck's stint 
(Rẽ Lưng đen, Calidris temminckii)

Temminck's stint (Calidris temminckii) is a small wader of the family Scolopacidae. 
The bird breeds in the taiga of Arctic northern Europe and Asia; it  is strongly migratory, wintering at freshwater sites in tropical Africa, the Indian subcontinent and parts of Southeast Asia.

Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

The word Scolopacidae is New Latin, derived from the genus name Scolopax (Latin for "snipe" or "woodcock") and the common zoological suffix for family names, -idae.

The genus name Calidris is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds.

The specific epithet is from the name of a Dutch naturalist Coenraad Jacob Temminck.