5 0 – 2 7 5 0 ▁meters ▁in ▁alt itude , ▁but ▁they ▁have ▁also ▁been ▁seen ▁near ▁cultiv ated ▁lands ▁as ▁low ▁as ▁ 7 0 0 ▁meters ▁in ▁alt itude . ▁ ▁Species ▁in ▁the ▁genus ▁Gla uc id ium ▁are ▁secondary ▁cav ity - nest ers . ▁For ▁example , ▁the ▁Asian ▁bar red ▁ow let ▁was ▁found ▁to ▁use ▁the ▁nest ▁cav ity ▁of ▁a ▁col la red ▁sc ops ▁ow l ▁once ▁it ▁was ▁no ▁longer ▁using ▁the ▁nest . ▁As ▁for ▁its ▁other ▁close ▁relative , ▁a ▁study ▁showed ▁that ▁the ▁j ung le ▁ow let ▁was ▁found ▁active ▁in ▁a ▁secondary ▁cav ity ▁nest ▁in ▁rip arian ▁for ests . ▁Just ▁like ▁the ▁col la red ▁ow let ' s ▁relatives , ▁this ▁small ▁ow l ▁does ▁not ▁create ▁its ▁own ▁nest , ▁but ▁rather ▁n ests ▁in ▁natural ▁tree ▁h ollow s ▁or ▁ch amb ers ▁created ▁by ▁wood pe ck ers ▁and ▁bar b ets . ▁ ▁Be hav iour ▁and ▁e col ogy ▁Comp ared ▁to ▁other ▁ow ls ▁in ▁the ▁genus ▁Gla uc id ium , ▁the ▁col la red ▁ow let ▁is ▁most ▁active ▁during ▁day light . ▁Being ▁di urn al , ▁this ▁bird ▁can ▁be ▁seen ▁per ch ing , ▁hunting ▁and ▁calling ▁during ▁most ▁parts ▁of ▁the ▁day , ▁and ▁sometimes ▁during ▁the ▁night . ▁It ▁is ▁often ▁mob bed ▁by ▁other ▁small ▁birds ▁when ▁ro ost ing . ▁ ▁Bre eding ▁Although ▁not ▁much ▁is ▁known