It is an important breeding site for spot-billed pelicans ( " Pelecanus philippensis " ).
2.
In the late 19th century, the spot-billed pelican ( " Pelecanus philippensis " ) nested in huge numbers in south Burma.
3.
The reservoirs harbor several species of bird including Oriental darter " Anhinga melanogaster ", spot-billed pelican " Pelecanus philippensis ", Asian openbill " Anastomus oscitans ", black-headed ibis " Threskiornis melanocephalus ", and Eurasian spoonbill " Platalea leucorodia ".
4.
The spot-billed pelicans Pelecanus philippensis large congregation was observed during 13.3 . 1999 to 6.4 . 1999 ( maximum 400 nos on 28.3 . 1999 ) and 28.3 . 2002 to 6.5 . 2002 ( maximum 522 nos . on 13.4 . 2002 ).
5.
Globally threatened avian species listed on the IUCN Red List include : Baer s Pochard ( " Aythya baeri " ), classified as Critically Endangered and may be extirpated from the Thale Noi area and from Thailand, however data is lacking on this species; the Masked Finfoot ( " Heliopais personata " ) is Endangered; the Lessor Adjutant Stork ( " Leptoptilos javanicus " ) is Vulnerable, although it was once the most abundant species of stalk and the Spot-billed Pelican ( " Pelecanus philippensis " ) is classified as Near Threatened.