▁also ▁a ▁large ▁cause ▁of ▁death s . ▁ ▁Conserv ation ▁efforts ▁under way ▁start ▁with ▁this ▁species ▁being ▁placed ▁on ▁Convention ▁on ▁Mig rat ory ▁Species ▁Append ix ▁II , ▁and ▁Ag re ement ▁on ▁the ▁Conserv ation ▁of ▁Al bat ross es ▁and ▁Pet rel s ▁Anne x ▁ 1 . ▁It ▁is ▁being ▁monitor ed ▁on ▁half ▁of ▁the ▁islands , ▁and ▁most ▁of ▁the ▁bre eding ▁sites ▁are ▁res erves . ▁He ard ▁Island , ▁Mc Donald ▁Island , ▁Mac qu arie ▁Island , ▁and ▁the ▁New ▁Zealand ▁islands ▁are ▁World ▁Heritage ▁S ites . ▁An ▁initial ▁Chile an ▁census ▁has ▁also ▁been ▁completed . ▁ ▁V ag ran cy ▁Although ▁this ▁is ▁a ▁rare ▁occurrence , ▁on ▁several ▁occasions ▁a ▁black - brow ed ▁al bat ross ▁has ▁summer ed ▁in ▁Scottish ▁g ann et ▁colon ies ▁( B ass ▁Rock , ▁H erman ess ▁and ▁now ▁S ula ▁S ge ir ) ▁for ▁a ▁number ▁of ▁years . ▁Or n ith olog ists ▁believe ▁that ▁it ▁was ▁the ▁same ▁bird , ▁known ▁as ▁Albert , ▁who ▁lives ▁in ▁north ▁Scotland . ▁It ▁is ▁believed ▁that ▁the ▁bird ▁was ▁blow n ▁off ▁course ▁into ▁the ▁North ▁Atlantic ▁ ▁in ▁ 1 9 6 7 . ▁A ▁similar ▁incident ▁took ▁place ▁in ▁the ▁g ann et ▁col ony ▁in ▁the ▁Far oe ▁Islands ▁island ▁of ▁My k ines , ▁where ▁a ▁black - brow ed ▁al bat ross ▁lived ▁among ▁the ▁g ann ets ▁for ▁over ▁ 3 0