Herons, egrets, and other wading birds depend on healthy wetlands for foraging and nesting, and face welfare challenges as wetland habitats continue to decline globally.
Wading birds that cannot find adequate prey in degraded wetlands experience starvation stress and must travel longer distances between foraging sites, increasing energy expenditure and exposure to hazards. Colonies disturbed during nesting abandon chicks that die of exposure and starvation. Chicks of great blue herons and egrets are particularly vulnerable, as they depend on intensive parental feeding for weeks. Lead poisoning from fishing sinkers and shot affects wading birds that consume prey from contaminated waterways.