Hair-crested Drongo Dicrurus hottentottus
Average number of individuals by week based on Singapore Bird Database data, Jul 2013 to Jun 2023 (all records)
Peak week Nov 26-Dec 02
Early date 26 Nov 2019
Late date 26 Nov 2019
Singapore's first and only record so far was of one bird at Changi Business Park on 26 Nov 2019.