Pacific Swallow – steam-whistle or warning calls

“A pair of Pacific Swallows (Hirundo tahitica javanica) that were completing their nest construction (above) gave warning calls when they spotted me approaching.

“Wells 2007 describes this as the ‘steam-whistle calls’ and renders it best as ‘pseeep’ or ‘theeep’.

“Calls above and sonogram & waveform given below.

“Now termed as House Swallow (Hirundo javanica javanica) in some literature.”

Dato’ Dr Amar-Singh HSS
Ipoh, Perak, Malaysia
20th December 2017

Location: Perak, Malaysia
Habitat: Semi-urban