Wading birds — herons, egrets, spoonbills, and ibis — have recovered significantly in North America since the Migratory Bird Treaty Act, but face growing threats from habitat loss and climate change.
Wading bird welfare is both a conservation and individual welfare concern. Colonial nesting creates density-dependent stress and disease transmission within large rookeries. Human disturbance during nesting causes nest abandonment and chick exposure to predation and heat. Individual birds caught in fish hooks, entangled in monofilament line, and affected by harmful algal blooms require rescue and rehabilitation. The MBTA framework protecting these birds demonstrates what legal protection can achieve.