Motacilla samveasnae
TAXONOMY
Motacilla samveasnae Duckworth et al., 2001, Cambodia.
OTHER COMMON NAMES
French: Bergeronnette de Mekong; German: Mekongstelze;
Spanish: Lavandera Mekong.
PHYSICAL CHARACTERISTICS
6.7–6.9 in (17–17.5 cm). Black head, breast, and upperparts
with white eye stripe, underside, and chin to throat.
DISTRIBUTION
Mekong River and tributaries in Cambodia and adjacent east
Thailand and south Laos, possibly also Vietnam.
HABITAT
Breeding habitat is swift-flowing rivers at braided channels
with rocks and bushes.
BEHAVIOR
Territorial when breeding. Possibly resident; almost no observations
outside breeding season.
FEEDING ECOLOGY AND DIET
Insectivorous; often forages within emergent bushes, walking
along branches.
REPRODUCTIVE BIOLOGY
Monogamous; breeds February through May, late in river’s
low-flow season. No other information available.
CONSERVATION STATUS
Should be considered Near Threatened. Although its population
density is locally high, it has a very restricted range and is
permanently at risk of extinction by habitat loss. The greatest
threat is dam-building; flow-modifying events, even in other
countries and far upstream of its known range, could drastically
affect its habitat.
SIGNIFICANCE TO HUMANS
None known.
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