Grassland birds are among the most rapidly declining bird groups globally. Agricultural intensification is the primary driver of both their population collapse and individual welfare harms.
Grassland bird chicks killed by mowing equipment during the nesting season die by direct trauma. Those that survive face chronic food shortages from pesticide-reduced insect populations. Adults subjected to fragmented grassland patches cannot find adequate territory or mates. The welfare of individual grassland birds is inseparable from the conservation crisis they face — population decline means fewer individuals enduring chronic habitat inadequacy. Agri-environment schemes that pay farmers to delay mowing protect both welfare and populations.