tail . ▁m t D NA ▁cy to chrome ▁b ▁and ▁N AD H ▁de h ydro gen ase ▁sub unit ▁ 2 ▁sequence ▁data ▁has ▁not ▁been ▁able ▁to ▁robust ly ▁resolve ▁the ▁relationships ▁of ▁these ▁birds , ▁especially ▁in ▁respect ▁to ▁the ▁blue - head ed ▁w ag tail ▁and ▁its ▁relatives . ▁ ▁The ▁species ▁is ▁considered ▁monot yp ic ▁and ▁sub species ▁such ▁as ▁k ang ra e ▁described ▁by ▁Walter ▁Ko el z ▁are ▁not ▁recognized . ▁ ▁Be hav iour ▁and ▁e col ogy ▁Usually ▁seen ▁in ▁pairs ▁or ▁small ▁groups ▁near ▁open ▁water . ▁They ▁call ▁often ▁especially ▁in ▁the ▁m orn ings ▁and ▁are ▁active ▁like ▁most ▁other ▁w agt ails . ▁They ▁will ▁per ch ▁on ▁the ▁ground ▁as ▁well ▁as ▁on ▁w ires ▁or ▁on ▁buildings . ▁The ▁song ▁is ▁long ▁and ▁loud ▁with ▁many ▁different ▁notes . ▁The ▁usual ▁call ▁is ▁a ▁whe e zy ▁" w he ech ". ▁They ▁can ▁fly ▁fairly ▁rapidly ▁for ▁long ▁distances ▁and ▁they ▁fly ▁with ▁a ▁bound ing ▁( di pping ▁and ▁rising ) ▁flight ▁pattern ▁and ▁have ▁been ▁recorded ▁to ▁travel ▁at ▁the ▁speed ▁of ▁about ▁ 4 0   km / h . ▁ ▁End op ar as it ic ▁fil arial ▁par as ites ▁of ▁the ▁species ▁S pl end id of ilar ia ▁sing hi ▁have ▁been ▁recorded ▁in ▁individuals ▁of ▁the ▁species . ▁ ▁Bre eding ▁ ▁The ▁bre eding ▁season ▁is ▁March ▁to ▁October . ▁In ▁southern ▁India ,