▁smaller ▁bill , ▁which ▁can ▁be ▁useful ▁when ▁small ▁Canada ▁ge ese ▁coming le ▁with ▁relatively ▁large ▁c ack ling ▁ge ese . ▁Of ▁the ▁" true ▁ge ese " ▁( i . e . ▁the ▁gener a ▁An ser , ▁Br anta ▁or ▁Chen ), ▁the ▁Canada ▁go ose ▁is ▁on ▁average ▁the ▁largest ▁living ▁species , ▁although ▁some ▁other ▁species ▁that ▁are ▁ge ese ▁in ▁name , ▁if ▁not ▁of ▁close ▁relation ▁to ▁these ▁gener a , ▁are ▁on ▁average ▁heav ier ▁such ▁as ▁the ▁sp ur - wing ed ▁go ose ▁and ▁Cape ▁Bar ren ▁go ose . ▁ ▁Canada ▁ge ese ▁range ▁from ▁ ▁in ▁length ▁and ▁have ▁a ▁ ▁wings pan . ▁Among ▁standard ▁measurements , ▁the ▁wing ▁ch ord ▁can ▁range ▁from ▁, ▁the ▁t ars us ▁can ▁range ▁from ▁ ▁and ▁the ▁bill ▁can ▁range ▁from ▁. ▁The ▁largest ▁sub species ▁is ▁the ▁B . ▁c . ▁maxim a , ▁or ▁the ▁giant ▁Canada ▁go ose , ▁and ▁the ▁smallest ▁( with ▁the ▁separation ▁of ▁the ▁c ack ling ▁go ose ▁group ) ▁is ▁B . ▁c . ▁par v ipes , ▁or ▁the ▁less er ▁Canada ▁go ose . ▁An ▁exception ally ▁large ▁male ▁of ▁race ▁B . ▁c . ▁maxim a , ▁which ▁rarely ▁exceed ▁, ▁we ighed ▁ ▁and ▁had ▁a ▁wings pan ▁of ▁. ▁This ▁spec imen ▁is ▁the ▁largest ▁wild ▁go ose ▁ever ▁recorded ▁of ▁any ▁species . ▁ ▁The ▁male ▁Canada ▁go ose ▁usually ▁we igh s ▁, ▁aver aging