, ▁but ▁diff ers ▁in ▁tail ▁morph ology ▁and ▁probably ▁in ▁voice . ▁M ole cular - gen etic ▁studies ▁required ▁in ▁order ▁to ▁el uc id ate ▁tax onom ic ▁status . ▁F ew ▁inter ▁gr ades ▁with ▁race ▁c ey l onic us ▁of ▁D . ▁parad ises ▁formerly ▁reported ▁along ▁border ▁between ▁wet ▁and ▁dry ▁zones , ▁but ▁inter bre eding ▁not ▁now ▁possible , ▁since ▁suitable ▁habitat ▁no ▁longer ▁remains ▁between ▁the ▁two ▁e colog ical ▁zones , ▁now ▁completely ▁separated . ▁ ▁Distribution ▁The ▁species ▁can ▁be ▁found ▁throughout ▁W et ▁zone ▁of ▁South ▁Western ▁parts ▁of ▁Sri ▁L anka , ▁from ▁D ed uru ▁O ya ▁to ▁W ala we . ▁ ▁Ident ification ▁ ▁Black ▁pl um age ▁with ▁met all ic ▁blue ▁or ▁green ish - blue ▁gl oss ▁ ▁Arch ing , ▁hel met - like ▁cr est ▁ ▁Deep ly ▁for ked ▁tail ▁ ▁Red ▁eye ▁ ▁Sex es ▁similar ▁ ▁Be havior ▁It ▁is ▁a ▁forest ▁bird ▁as ▁other ▁dr ong os ▁that ▁can ▁is ▁conf ined ▁to ▁forest ▁edges , ▁plant ations , ▁and ▁wood ed ▁gard ens . ▁Like ▁most ▁dr ong os , ▁it ▁fe eds ▁on ▁insect s ▁from ▁open ▁per ches . ▁A ▁super b ▁m im ic ▁of ▁the ▁calls ▁of ▁other ▁birds ▁but ▁always ▁has ▁a ▁met all ic ▁sound . ▁ ▁References ▁ ▁R asm ussen , ▁P . C ., ▁and ▁J . C . ▁And erton . ▁ 2 0 0 5