Snow goose populations have exploded due to agricultural subsidies on wintering grounds, creating habitat destruction on Arctic breeding grounds that harms many species including the geese themselves.
Snow goose overabundance creates a welfare challenge that operates through ecological cascade: geese benefiting from winter agricultural food create breeding ground habitat destruction that ultimately harms the same geese through reduced nesting quality and food availability. The management response — conservation hunting orders — involves welfare costs to individual geese killed in expanded hunting seasons. This case illustrates how human ecosystem modification can create population-scale welfare problems even for species that initially benefit, and how welfare considerations must account for both individual harm and the ecological context that determines aggregate welfare.