Common Buzzard Buteo buteo
Estimated average number of individuals by week based on eBird data, Jul 2013 to Jun 2023
Peak week Nov 05-Nov 11
Early date 25 Sep 2009
Late date 18 Apr 2004
It's currently unclear which is the more common of the two Buteos recorded in Singapore (Common and Eastern). But both species are hard to find outside of their main migratory period in late Oct and early Nov.