Brown-backed Needletail Hirundapus giganteus
Estimated average number of individuals by week based on eBird data, Jul 2012 to Jun 2022
Peak week Mar 19-Mar 25, Oct 29-Nov 04
Usually seen during the raptor migration period in Oct and Nov. Decent views or photographs are required to rule out the similar Silver-backed Needletail, which has a slightly paler throat.