▁include ▁ser pent ine ▁err atic ▁deport ment ▁behav iors ▁which ▁include ▁per cept ible ▁qu ill ▁v ibration . ▁The ▁lower ▁extrem ities ▁of ▁the ▁male ' s ▁wings ▁and ▁tail ▁are ▁pushed ▁vert ically ▁into ▁the ▁ground ▁leaving ▁tra ils ▁in ▁sand ▁and ▁leaf ▁l itter . ▁These ▁performances ▁may ▁cul min ate ▁in ▁the ▁later al ▁compression ▁of ▁the ▁body ▁and ▁pl um age ▁and ▁spread ing ▁of ▁his ▁train . ▁The ▁head ▁is ▁held ▁parallel ▁to ▁the ▁ground ▁throughout ▁these ▁display ▁behav iors ▁exhib iting ▁upper ▁thro at ▁br ist les ▁in ▁one ▁species ▁and ▁down y ▁pl um u elles ▁in ▁the ▁second , ▁which ▁together ▁with ▁the ▁forward ▁position ing ▁of ▁the ▁cr ests , ▁obsc ure ▁the ▁shape ▁of ▁the ▁head . ▁The ▁male ▁also ▁ere ct s ▁a ▁n uch al ▁h ood ▁and ▁his s es ▁aud ibly ▁while ▁st om ping ▁his ▁feet . ▁Like ▁other ▁pe af ow ls , ▁the ▁cr ested ▁arg us ▁emp lo ys ▁these ▁and ▁more ▁complex ▁display ▁behav iors ▁in ▁anti - pred atory ▁enc oun ters , ▁especially ▁with ▁re pt iles . ▁ ▁Hab itat ▁and ▁distribution ▁From ▁limited ▁an ec dot al ▁observations ▁of ▁local ▁ind igen ous ▁pe op les , ▁both ▁species ▁select ▁nest ▁sites ▁in ▁elev ated ▁reaches , ▁often ▁amongst ▁esc arp ments ▁on ▁ste ep ▁s lop es ▁amongst ▁leaf ▁l itter . ▁ ▁They ▁produce ▁very ▁small ▁cl ut ches ▁of ▁from ▁one - two ▁large ▁eggs