Glossy Swiftlet (Collocalia esculenta)
Collocalia is a genus of swifts, containing some of the smaller species termed "swiftlets". Formerly a catch-all genus for these, a number of its erstwhile members are now normally (though not by all authors) placed in Aerodramus.
An Early Miocene fossil swiftlet from the famous Riversleigh deposits of Australia was described as Collocalia buday. This as well as a right ulna (MNZ S42799) found at the Manuherikia River in Otago, New Zealand and dating from the Early to Middle Miocene (Awamoan to Lillburnian, 19-16 million years ago) would probably go into Aerodramus too.
It contains the following species:
Bornean Swiftlet (Richmond, 1905) (Collocalia dodgei) Glossy Swiftlet (Linnaeus, 1758) (Collocalia esculenta) Grey-rumped Swiftlet (Collocalia (esculenta) marginata) Christmas Swiftlet (Collocalia (esculenta) natalis) Cave Swiftlet (Horsfield & Moore, 1854) (Collocalia linchi) Pygmy Swiftlet (Gray, 1845) (Collocalia troglodytes)