Latin name:Larus saundersi
Vietnamese Name:Mòng bể mỏ ngắn
Family:Laridae
Order:Lariformes
Class (Group):

Identification

  • Short, stocky, black beak.
  • Pale white secondary feathers, paler than the upper wing coverts.
  • The underside of the outermost four primary feathers are black.
  • Faint black stripes on the head.
  • In summer, the head and throat are dark green.

Biology and Ecology

  • Inhabits wetlands, intertidal zones of coastal estuaries, and large lakes.
  • In winter, it forages in the flooded tidal flats of estuaries in Vietnam.

Distribution

  • Vietnam: Day River Estuary, Red River Estuary (Nam Dinh), Thai Binh River Estuary (Thai Binh), Van Uc River Estuary (Hai Phong), Quang Ninh (12/2001).
  • World: Southeast Asia, China (Hainan, Taiwan, Hong Kong).

Value

  • A valuable genetic resource with high scientific value.

Status

  • The global population is declining rapidly due to various factors.
  • A migratory bird that winters in Vietnam.
    • Approximately 200 individuals were observed in the Red River Estuary in March 1989.
    • Approximately 160-170 individuals were observed in the Day River Estuary in February 1992.
  • Few recent population data available, with sightings becoming increasingly rare in the aforementioned estuaries.

Classification

  • VU A1a D1

Conservation Measures

  • Protection and proper management of the tidal flats in the Red River and Day River estuaries (Nam Dinh).
  • Listed in the Vietnam Red Data Book (1992, 2000) as “Rare” (R).
  • Listed in the Asian Red Data Book of Birds (2001) as “Vulnerable” (VU).