▁red , ▁and ▁there ▁is ▁no ▁indic ation ▁of ▁their ▁original ▁colour ation . ▁The ▁reason ▁only ▁white ▁spec im ens ▁are ▁known ▁today ▁may ▁be ▁collect ing ▁bias ; ▁unus ually - col oured ▁spec im ens ▁are ▁more ▁likely ▁to ▁be ▁collected ▁than ▁normally - col oured ▁ones . ▁ ▁Be hav iour ▁and ▁e col ogy ▁ ▁The ▁Lord ▁How e ▁sw am phen ▁inhab ited ▁wood ed ▁low land ▁areas ▁in ▁wet lands . ▁Nothing ▁was ▁recorded ▁about ▁its ▁social ▁and ▁re product ive ▁behaviour ▁and ▁its ▁nest , ▁eggs ▁and ▁call ▁were ▁never ▁described . ▁Pres umably ▁it ▁did ▁not ▁migr ate . ▁Black burn ' s ▁ 1 7 8 8 ▁account ▁is ▁the ▁only ▁one ▁that ▁mentions ▁the ▁di et ▁of ▁this ▁bird : ▁ ▁Some ▁contemporary ▁accounts ▁indicated ▁that ▁the ▁bird ▁was ▁flight less . ▁Row ley ▁considered ▁the ▁Liverpool ▁spec imen ▁( re present ing ▁the ▁separate ▁species ▁P . ▁stan ley i ) ▁capable ▁of ▁flight , ▁due ▁to ▁its ▁longer ▁wings ; ▁Roth sch ild ▁believed ▁that ▁both ▁were ▁flight less , ▁although ▁he ▁was ▁incons istent ▁about ▁whether ▁their ▁wings ▁were ▁the ▁same ▁length . ▁Van ▁Gr ouw ▁and ▁H ume ▁found ▁that ▁both ▁spec im ens ▁showed ▁evidence ▁of ▁an ▁increased ▁terrest rial ▁l ifest yle ▁( including ▁decre ased ▁wing ▁length , ▁more ▁robust ▁feet ▁and ▁short ▁to es ), ▁and ▁were ▁in ▁the ▁process ▁of ▁becoming ▁flight less . ▁Although ▁it ▁may ▁still ▁have ▁been ▁capable ▁of ▁flight