▁or ▁d row ning ▁in ▁mud ▁as ▁a ▁direct ▁result ▁of ▁the ▁Canada ▁go ose ' s ▁pe ck ing ▁the ▁head ▁of ▁the ▁br ant ▁into ▁the ▁mud . ▁Research ers ▁attributed ▁it ▁to ▁high ▁h orm one ▁levels ▁and ▁the ▁br ant ' s ▁in ability ▁to ▁leave ▁the ▁nest ing ▁area . ▁ ▁Diet ▁Canada ▁ge ese ▁are ▁primarily ▁her b iv ores , ▁although ▁they ▁sometimes ▁eat ▁small ▁insect s ▁and ▁fish . ▁Their ▁di et ▁includes ▁green ▁veget ation ▁and ▁gra ins . ▁The ▁Canada ▁go ose ▁e ats ▁a ▁variety ▁of ▁grass es ▁when ▁on ▁land . ▁It ▁fe eds ▁by ▁grasp ing ▁a ▁bla de ▁of ▁grass ▁with ▁the ▁bill , ▁then ▁te aring ▁it ▁with ▁a ▁j erk ▁of ▁the ▁head . ▁The ▁Canada ▁go ose ▁also ▁e ats ▁be ans ▁and ▁gra ins ▁such ▁as ▁whe at , ▁rice , ▁and ▁corn ▁when ▁they ▁are ▁available . ▁In ▁the ▁water , ▁it ▁fe eds ▁from ▁aqu atic ▁plants ▁by ▁sl iding ▁its ▁bill ▁at ▁the ▁bottom ▁of ▁the ▁body ▁of ▁water . ▁It ▁also ▁fe eds ▁on ▁aqu atic ▁plant - like ▁alg ae , ▁such ▁as ▁sea we eds . ▁In ▁urban ▁areas , ▁it ▁is ▁also ▁known ▁to ▁pick ▁food ▁out ▁of ▁garbage ▁b ins . ▁They ▁are ▁also ▁sometimes ▁hand - f ed ▁a ▁variety ▁of ▁gra ins ▁and ▁other ▁food s ▁by ▁humans ▁in ▁par ks . ▁ ▁Re production ▁ ▁During ▁the ▁second ▁year ▁of ▁their ▁lives , ▁Canada