This is an all black, small (some 30 cm in length incl tail) but incredibly aggressive Asian predatory songbird.
Here, in urban environment of Cox's Bazar. Otherwise seen in great numbers in all visited rural areas in Teknaf peninsula; close to habitations and near agricultural fields. It is often associated with farming, and farmers appreciate it, because Drongos help farmers in controlling animal pests.
Considered subspecies of African Fork-tailed Drongo (Dicrurus adsimilis) until recently.
Lat: 21.43, Long: 92.02
Spotted on Feb 19, 2019
Submitted on Feb 22, 2019