▁int im id ate ▁other ▁rival ▁males . ▁When ▁they ▁are ▁vig il ant , ▁they ▁make ▁a ▁single ▁rising ▁" py u oo - " ▁call . ▁When ▁they ▁are ▁shelter ing ▁themselves ▁from ▁a ▁pred ator ▁or ▁any ▁threat , ▁they ▁emit ▁a ▁call ▁like , ▁" pip - pip - pip ". ▁ ▁Diet ▁ ▁Very ▁little ▁information ▁is ▁available ▁on ▁the ▁feed ing ▁habit ▁of ▁the ▁long - bil led ▁p lo ver . ▁Its ▁di et ▁is ▁thought ▁to ▁primarily ▁include ▁aqu atic ▁insect s ▁and ▁other ▁in verte br ates . ▁These ▁birds ▁have ▁been ▁observed ▁to ▁pre y ▁on ▁mid ges , ▁drag on f lies , ▁lar va e ▁of ▁be et les , ▁f lies , ▁and ▁earth w orm s . ▁Long - bil led ▁p lo vers ▁for age ▁along ▁the ▁sh or eline ▁and ▁when ▁they ▁spot ▁a ▁pre y , ▁they ▁move ▁towards ▁it ▁quickly ▁and ▁capture ▁it ▁with ▁their ▁long ▁bill . ▁They ▁do ▁not ▁seem ▁to ▁consume ▁any ▁plant ▁material . ▁ ▁Similar ▁species ▁in ▁the ▁genus ▁Char ad ri us ▁such ▁as ▁the ▁Common ▁ring ed ▁p lo ver ▁and ▁the ▁Kent ish ▁p lo ver ▁have ▁been ▁observed ▁to ▁pre y ▁on ▁my s id ▁sh rim ps . ▁The ▁di et ▁of ▁long - bil led ▁p lo vers ▁may ▁also ▁consist ▁of ▁similar ▁cr ust ace ans . ▁ ▁Re production ▁ ▁Long - bil led ▁p lo vers ▁exhib it ▁a ▁mon og