Peregrine Falcon Recovery and Urban Welfare

Peregrine falcons recovered from near-extinction caused by DDT and now thrive in cities worldwide. Their welfare in urban environments presents new opportunities and challenges.

Key Facts

Peregrine falcons were nearly eliminated in North America by the pesticide DDT in the mid-20th century
A successful captive breeding and reintroduction program restored populations from the 1970s onward
Peregrines are now common in cities where tall buildings replicate cliff nesting sites
Urban peregrines benefit from abundant pigeon and starling prey and reduced persecution
They are the fastest animals on Earth, reaching over 320 km/h in a hunting dive
Urban peregrines face hazards including window strikes, rat poison ingestion from prey, and power lines
Many cities have installed nest boxes on buildings and bridges to support breeding pairs
Peregrine populations are considered recovered in most regions but monitoring continues

Welfare Considerations

The peregrine falcon recovery is one of conservation science greatest successes, demonstrating that population collapse caused by human activity can be reversed. Urban peregrines now face a distinct set of welfare challenges. Secondary poisoning from rodenticides — consumed through prey animals such as pigeons — can cause neurological damage and death. Window and vehicle strikes kill urban raptors in significant numbers. Despite these hazards, urban environments offer peregrines reliable food sources and reduced persecution compared to rural areas. Nest box programs provide safe nesting sites. Ongoing welfare monitoring of urban peregrine pairs — aided by citizen science nest cameras — has built public engagement with raptor conservation and helped identify and address welfare issues quickly.

What You Can Do

Support local peregrine nest monitoring programs and nest camera projects
Advocate for bans on second-generation rodenticides that poison raptors through prey
Make windows bird-safe using decals, screens, or fritted glass
Support urban wildlife corridors that allow raptors safe movement through cities
Donate to raptor rehabilitation centres that treat injured peregrines
Learn about peregrine recovery history and share this conservation success story