White-winged Tern

Chlidonias leucopterus

Unlike marine terns that plunge-dive for fish, the White-winged Tern delicately swoops to pluck insects directly from the air or skims them off the water surface.

Scientific name
Chlidonias leucopterus
Taxonomy
Animalia › Chordata › Aves › Charadriiformes › Laridae › Chlidonias
IUCN Red List status
Least Concern
Population trend
decreasing
Biome
wetland
Habitat
Freshwater marshes, shallow lakes, wet meadows, and reservoirs.
Diet
Primarily terrestrial and aquatic insects, as well as small fish and tadpoles.
Range
Europe, Asia, Africa, Australia
Size
Wingspan of 60-67 cm, body length of 20-24 cm, weighing 50-80 grams.
Lifespan
7-10 years
Active
diurnal
Threats
Wetland degradation and drainage, water pollution, and loss of nesting vegetation.
Safe to approach?
Harmless. Maintain a safe distance of at least 30 meters, especially during the nesting season when they may dive-bomb intruders to defend their territory. If swooped, calmly walk away. They pose no physical danger to humans.

The white-winged tern , or white-winged black tern ( Chlidonias leucopterus or Chlidonias leucoptera ), is a species of tern in the family Laridae. It is a small species generally found in or near bodies of fresh water across much of the world, including Europe, Africa, Asia, and Australia. The genus name is from Ancient Greek khelidonios , "swallow-like", from khelidon , "swallow". The specific leptopterus is also Greek from leptos , "slender", and pteros , "feathered", itself from pteron , "wing".

Photo: Kim, Hyun-tae, CC-BY, via iNaturalist

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