White breasted Waterhen

Scienticfic Name -  Amaurornis phoenicurus
Assamese Local Name -  Dauk
Description: It is a waterbird of the rail and crake family Rallidae that is widely distributed across Southeast Asia and the Indian Subcontinent. They are dark slaty birds with a clean white face, breast and belly. They are somewhat bolder than most other rails and are often seen stepping slowly with their tail cocked upright in open marshes or even drains near busy roads. They are largely crepuscular in activity and during the breeding season, just after the first rains, make loud and repetitive croaking calls.

Grey-headed Swamphen

Scienticfic Name -  Porphyrio poliocephalus
Assamese Local Name -  Kaam Sorai

Description: The Grey-headed Purple swamphen (Porphyrio poliocephalus) occurs in India to Sri Lanka, southern China, northern Thailand, Andaman and Nicobar islands.  It previously was considered a subspecies of the purple swamphen.

Common Coot

Scienticfic Name -  Fulica atra
Assamese Local Name -  
Description - It  is a member of the rail and crake bird family, the Rallidae. It is found in Europe, Asia, Australia and parts of Africa. It is 32–42 cm (13–17 in) long and is largely black except for the white frontal shield. The juvenile is paler than the adult, has a whitish breast, and lacks the facial shield; the adult black plumage develops when about 3–4 months old, but the white shield is only fully developed at about one year old.

Common Moorhen

Scienticfic Name -  Gallinula chloropus
Assamese Local Name -  
Description - It is a bird species in the Rallidae family.The common moorhen lives around well-vegetated marshes, ponds, canals and other wetlands. The species is not found in the polar regions or many tropical rainforests. Elsewhere it is likely the most common rail species.The moorhen is a distinctive species, with dark plumage apart from the white undertail, yellow legs and a red frontal shield. The young are browner and lack the red shield.This is a common breeding bird in marsh environments and well-vegetated lakes. 

Watercock

Scienticfic Name -  Gallicrex cinerea
Assamese Local Name -  
Description - It is a waterbird in the rail and crake family Rallidae. Their breeding habitat is swamps across south Asia from India, Pakistan, and Sri Lanka to south China, Japan, Philippines and Indonesia. They nest in a dry location on the ground in marsh vegetation, laying 3-6 eggs. These large rails are mainly permanent residents throughout their range.