▁ 2 0 0 4 , ▁the ▁American ▁Or n ith olog ists ' ▁Union ' s ▁Committee ▁on ▁Classification ▁and ▁N omen cl ature ▁split ▁them ▁into ▁two ▁species , ▁making ▁the ▁c ack ling ▁go ose ▁into ▁a ▁full ▁species ▁with ▁the ▁scientific ▁name ▁Br anta ▁h utch in si i . ▁The ▁British ▁Or n ith olog ists ' ▁Union ▁followed ▁suit ▁in ▁June ▁ 2 0 0 5 . ▁ ▁The ▁A OU ▁has ▁divided ▁the ▁many ▁sub species ▁between ▁the ▁two ▁species . ▁The ▁sub species ▁of ▁the ▁Canada ▁go ose ▁were ▁listed ▁as : ▁ ▁Atlantic ▁Canada ▁go ose , ▁B . ▁c . ▁canad ensis ▁( Lin na eus , ▁ 1 7 5 8 ) ▁ ▁Inter ior ▁Canada ▁go ose , ▁B . ▁c . ▁interior ▁( T odd , ▁ 1 9 3 8 ) ▁ ▁Gi ant ▁Canada ▁go ose , ▁B . ▁c . ▁maxim a ▁Del ac our , ▁ 1 9 5 1 ▁ ▁M off itt ' s ▁Canada ▁go ose , ▁B . ▁c . ▁m off itt i ▁Ald rich , ▁ 1 9 4 6 ▁ ▁V ancouver ▁Canada ▁go ose , ▁B . ▁c . ▁ful va ▁( Del ac our , ▁ 1 9 5 1 ) ▁ ▁D us ky ▁Canada ▁go ose , ▁B . ▁c . ▁occident alis ▁( B air d , ▁ 1 8 5 8 ) ▁ ▁L esser ▁Canada ▁go ose , ▁B . ▁c .