It is evident that house-reared swiftlets are imprinted on buildings as potential nest sites.
There is no evidence (e.g., Sabah, Perak) that any house-type birds have colonised available caves.
Therefore, genetically and behaviourally they constitute a new ‘domestic’ form of swiftlet.
If they are hybrids, their scientific name is not regulated by the International Commission of Zoological Nomenclature.
For convenience, they could perhaps be known as
Aerodramus domesticus
http://www.qqbirdnest.com
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