/Sand_Martin_commons.jpg)
Riparia riparia
Also known as: Sand Martin
Diet
Flying insects
Habitat
Rivers, wetlands, open country during migration
Range
Breeds across the Northern Hemisphere, winters to the tropics
Clutch size
4–5 eggs (on breeding grounds)
Incubation period
About 14 days
Size
Small (12cm)
Wingspan
~26–29cm
Weight
~12–16g
A rare/accidental vagrant to Borneo, this small, plain brown swallow with a distinctive brown breast band breeds colonially in burrows in sandy riverbanks far to the north.
Any Bornean sighting would likely be a wintering or passage bird hawking insects low over open water or wetland habitat alongside other swallow species.