▁un common ▁but ▁found ▁throughout ▁the ▁island ▁in ▁the ▁low lands , ▁and ▁at ▁elev ations ▁of ▁up ▁to ▁ 1 2 0 0   m ▁in ▁the ▁hill ▁country , ▁frequent ing ▁mountain ▁cl iffs ▁and ▁rock ▁out cro ps . ▁ ▁The ▁she er ▁cl iff ▁faces ▁provide ▁it ▁with ▁nest ▁sites ▁and ▁serve ▁as ▁v antage ▁points ▁from ▁which ▁it ▁can ▁launch ▁aer ial ▁strik es ▁against ▁fast - f lying ▁birds ▁such ▁as ▁sw ifts . ▁S igi ri ya ▁is ▁a ▁well ▁known ▁site ▁for ▁it . ▁ ▁E col ogy ▁and ▁behaviour ▁The ▁sh a he en ▁is ▁usually ▁seen ▁as ▁a ▁solit ary ▁bird , ▁ ▁or ▁in ▁pairs ▁on ▁cl iffs ▁and ▁rock ▁p inn acles . ▁Per egr ines ▁typically ▁mate ▁for ▁life . ▁Because ▁of ▁the ▁size ▁difference ▁between ▁a ▁male ▁and ▁a ▁female , ▁a ▁m ated ▁pair ▁generally ▁h unt ▁different ▁pre y ▁species . ▁It ▁is ▁adapted ▁to ▁taking ▁pre y ▁in ▁the ▁air ▁and ▁can ▁achieve ▁a ▁speed ▁of ▁ 2 4 0   km h ▁in ▁level ▁flight ; ▁when ▁div ing ▁after ▁pre y ▁it ▁can ▁exceed ▁spe eds ▁of ▁ 3 2 0 ▁  km h ▁( 2 0 0   m ph ). ▁ ▁Fe eding ▁Sh a he ens ▁mostly ▁h unt ▁small ▁birds , ▁though ▁medium - s ized ▁birds ▁such ▁as ▁p ige ons ▁and ▁par ro ts ▁are ▁also ▁taken . ▁Str ong ▁and ▁fast , ▁they ▁d ive ▁from ▁great