Wild Peregrine Falcon Recovery and Urban Welfare

Peregrine falcons have made one of the most dramatic conservation recoveries of any raptor, now thriving in urban environments where their welfare intersects with human activity in novel ways.

Key Facts

Peregrine falcons were nearly eliminated from North America and much of Europe by DDT before the pesticide was banned in 1972-1973
The North American peregrine population recovered from fewer than 400 breeding pairs in the 1970s to over 3,000 pairs by 2000
Peregrines now nest on tall buildings, bridges, and industrial structures across many cities; building falcons often have higher breeding success than cliff nesters
Urban peregrines feed primarily on feral pigeons, creating an ecological service that reduces pigeon populations in cities
Prey contamination with anticoagulant rodenticides poses a welfare and health risk for urban peregrines that eat poisoned pigeons or rats
Collisions with glass buildings kill an unknown number of urban peregrines, particularly juvenile birds learning to hunt
Nest cameras on urban peregrine nests attract large public followings; individual birds become known and monitored welfare subjects
Ringing (banding) of urban peregrine chicks enables individual tracking and population monitoring across their lives

Welfare Considerations

Urban peregrine welfare illustrates a success story with remaining challenges: a species that nearly went extinct, recovered through legal protection and pesticide bans, and has now adapted so successfully to urban environments that many individuals likely have better welfare than their wild cliff-nesting counterparts, with abundant prey and reduced competition. The remaining welfare challenges are anthropogenic: rodenticide exposure through prey, glass building collisions, and the occasional direct persecution that still occurs despite legal protection. These are human-created welfare risks that human choices can reduce: rodenticide elimination, bird-safe glass standards, and zero tolerance for raptor persecution would further improve the welfare trajectory of a species that has already demonstrated remarkable resilience.

What You Can Do

Follow local urban peregrine nesting on live cam websites maintained by falconry clubs and local authorities
Advocate for rodenticide restrictions in urban areas to reduce secondary poisoning of peregrines and other urban raptors
Support bird-safe glass standards in building design to reduce collision mortality for urban falcons
Report peregrine persecution or injury to wildlife crime reporting lines in your jurisdiction