The dramatic overabundance of lesser snow geese in North America creates welfare dilemmas involving large-scale habitat destruction, the welfare of geese themselves, and lethal population management debates.
Snow goose overabundance presents a genuine welfare dilemma that exposes tensions in how welfare considerations are applied at different scales. Individual snow geese are sentient birds whose welfare matters. But the habitat destruction caused by overabundant populations destroys ecosystems that support the welfare of many other species. Lethal population management causes suffering to killed individuals but may prevent greater aggregate harm from ecosystem collapse. This is the kind of welfare question that requires weighing individual welfare against aggregate welfare outcomes — a genuinely difficult problem without a clearly correct answer. The welfare case for habitat protection that prevents overabundance at lower population levels — through limiting agricultural food subsidies on wintering grounds — is stronger than the case for lethal control, addressing the driver rather than the consequence while causing less direct suffering.