The Asian House Martin is a widespread migratory swallow found across East Asia. It is characterized by its glossy blue-black upperparts, white rump, and clean white underparts.
Where to spot
Breeds in mountainous regions and open country near cliffs or human structures in East Asia (e.g., Siberia, Mongolia, China). Winters in Southeast Asia.
How to spot
Look for its dark upperparts, prominent white rump, and clean white belly. Observe its agile, often high-flying foraging. Often seen in flocks around nesting sites.
When to spot
Breeding season (spring/summer) in East Asia; winter (autumn/winter) in Southeast Asia.
Where to spot
Breeds in mountainous regions and open country near cliffs or human structures in East Asia (e.g., Siberia, Mongolia, China). Winters in Southeast Asia.
How to spot
Look for its dark upperparts, prominent white rump, and clean white belly. Observe its agile, often high-flying foraging. Often seen in flocks around nesting sites.
When to spot
Breeding season (spring/summer) in East Asia; winter (autumn/winter) in Southeast Asia.
Like other house martins, this species builds enclosed mud nests, often under eaves of buildings or on cliff faces, and are highly social, forming large breeding colonies.
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