Common Swift Apus apus
Average number of individuals by week based on Singapore Bird Database data, Jul 2012 to Jun 2022 (all records)
Peak week Oct 08-Oct 14, Oct 22-Oct 28
Early date 09 Oct 2020
Late date 27 Oct 2020
Both of this species's records in Singapore were in Oct 2020. It lacks the white rump of the similar and much more common Pacific Swift.