Wild animal welfare at population scale involves understanding how many individual animals experience positive versus negative welfare states across ecosystems, informing conservation and management priorities.
Population-level wild animal welfare is a philosophically contested but increasingly important field. Wild animals suffer extensively through predation, parasitism, starvation, and weather extremes. This suffering is not offset by the aesthetic value of naturalness from the suffering animals' perspective. Whether human intervention to reduce wild animal suffering — beyond conservation-motivated actions — is warranted is debated. Practical interventions like wildlife disease vaccination (e.g., oral rabies vaccines for foxes) demonstrate that welfare intervention in wild populations is sometimes feasible. The field is developing frameworks for thinking about when intervention is justified and what forms it should take.