▁as ▁a ▁game ▁animal ▁in ▁the ▁ 1 9 6 0 s . ▁The ▁Canada ▁go ose ▁is ▁well ▁adapted ▁to ▁living ▁in ▁Finland ▁and ▁is ▁even ▁causing ▁some ▁problems , ▁particularly ▁on ▁the ▁golf ▁courses ▁and ▁past ures ▁in ▁the ▁country . ▁The ▁problem , ▁though , ▁at ▁the ▁moment , ▁is ▁merely ▁cos met ic . ▁ ▁Be hav iour ▁ ▁Like ▁most ▁ge ese , ▁the ▁Canada ▁go ose ▁is ▁naturally ▁mig rat ory ▁with ▁the ▁winter ing ▁range ▁being ▁most ▁of ▁the ▁United ▁States . ▁The ▁calls ▁overhead ▁from ▁large ▁groups ▁of ▁Canada ▁ge ese ▁flying ▁in ▁V - sh aped ▁formation ▁signal ▁the ▁trans itions ▁into ▁spring ▁and ▁aut umn . ▁In ▁some ▁areas , ▁migration ▁routes ▁have ▁changed ▁due ▁to ▁changes ▁in ▁habitat ▁and ▁food ▁sources . ▁In ▁m ild ▁clim ates ▁from ▁south ▁western ▁British ▁Columbia ▁to ▁California ▁to ▁the ▁Great ▁L akes , ▁some ▁of ▁the ▁population ▁has ▁become ▁non m ig rat ory ▁due ▁to ▁ade qu ate ▁winter ▁food ▁supply ▁and ▁a ▁lack ▁of ▁former ▁pred ators . ▁ ▁M ales ▁exhib it ▁ag on istic ▁behavior ▁both ▁on ▁and ▁off ▁bre eding ▁and ▁nest ing ▁grounds . ▁This ▁behavior ▁rarely ▁involves ▁inter specific ▁killing . ▁One ▁documented ▁case ▁involved ▁a ▁male ▁def ending ▁his ▁nest ▁from ▁a ▁br ant ▁go ose ▁that ▁w ander ed ▁into ▁the ▁area ; ▁the ▁following ▁attack ▁last ed ▁for ▁one ▁hour ▁until ▁the ▁death ▁of ▁the ▁br ant . ▁The ▁cause ▁of ▁death ▁was ▁suff ocation