Will Loosening Trade restrictions undo a Remarkable Raptor Recovery?

The crow-sized, slate-blue-backed peregrine falcon, with its radiant yellow feet, soars across the skies from Greenland’s Arctic tundra to the steppe plains of Patagonia in South America. falco peregrinus is one of the most widespread birds on the planet, with 19 subspecies that call coasts, mountains, deserts and river valleys home.

These eye-catching raptors are best known for thier hunting skills. Thay can dive at lightning speeds of 320 kilometers per hour (200 miles per hour) – more than three times as fast as a cheetah, the swiftest land animal – to scoop their prey. falconers prize peregrine falcons and have traded them for centuries, sometimes stealing eggs and young chicks from clifftop nests to breed them in captivity and train them.

but it wasn’t falconry that caused their near-extinction. it was pesticides: After World War II, chemicals like DDT, aldrin and others became ubiquitous, used in neighborhoods, backyards and on crop fields to kill mosquitoes and agricultural pests.

That proved deadly to peregrine falcons. the pesticides poisoned their prey and bioaccumulated in their bodies, impairing their ability to reproduce. The eggs that females laid were thinner and more fragile,leached of calcium by DDT,and would break in the nests before the chicks could hatch.

Peregrine falcon populations crashed across North America and Europe. They completely disappeared from the eastern U.S. and were on the brink of extinction in the West. Then, in 1962, U.S. biologist Rachel Carson published Silent Spring, detailing the devastating effects of pesticides on wildlife.

Peregrine falcons,the world’s fastest and most widespread raptors,recovered spectacularly after pesticides that nearly drove them to extinction were banned and captive-bred birds were rewilded,making the effort a remarkable conservation success story. even though the species is no longer endangered,international commercial trade in this bird,coveted by falconers,is banned for wild-caught specimens and highly regulated for captive-bred ones.

Now, Canada and the U.S. propose loosening those restrictions, a proposal that will be voted on at the upcoming meeting of CITES, the global wildlife trade treaty. Some raptor scientists have concerns. The Canada-U.S. downlisting proposal includes population estimates of just a few subspecies; many others are understudied. some populations have declined in recent years and illegal trade continues.

Until there are safeguards against unsustainable trade and accurate assessments for all subspecies, conservationists say lowering protections could undo the efforts that have brought this bird back from the brink.

## Proposal to Downgrade Peregrine Falcon Conservation Status Sparks Debate

Proposal concerns scientists

the proposal has raised concern among some scientists, who have launched a petition to oppose it. They’ve also submitted a letter outlining the issues with the proposal, which has been accepted for publication in the journal Animal Conservation.

One of the authors of that letter is Knud Falk, an independent raptor researcher based in Sweden who began studying peregrine falcons five decades ago when their numbers were on the brink. “My grey hair indicates that I’ve been around while the falcons were really almost extinct in much of Europe and much of

Peregrine Falcons Face a New Threat After Decades of Recovery

For decades, peregrine falcons were a symbol of conservation success. After being decimated by DDT in the mid-20th century, the species rebounded thanks to the banning of the pesticide and dedicated reintroduction programs. Now, however, these iconic birds of prey are facing a new and worrying decline, and scientists are pointing to avian influenza as a major culprit.

In Europe, the situation is particularly concerning. In Scotland and Sweden, researchers have observed a recent surge in immature falcons – typically females – successfully claiming territories. this is unusual, as established adults usually fill any vacancies. The increase suggests a significant loss of adult birds, likely due to the spread of highly pathogenic avian influenza (H5N1).

North American trends mirror these concerns. Observations from the annual Christmas Bird Count, organized by the Audubon Society, show peregrine falcon numbers have dropped by nearly half over the last three years in British Columbia, Canada, and Washington state. Along Alaska’s Yukon River, the number of breeding pairs plummeted from around 60 in 2019 to just 33 in 2023. Similar declines are being reported in other parts of North America.

“These kinds of data indicate that there’s something wrong in the northern populations,” says Dr. Brian Falk, a peregrine falcon expert. while the exact cause remains under investigation, H5N1 is a prime suspect.

Currently, a proposal before the Convention on International Trade in Endangered Species (CITES) acknowledges the threat of avian flu but states that each country must assess whether trade could harm wild populations. The proposal argues that trade doesn’t considerably spread the disease, as imports are often quarantined and diseased birds don’t survive long in transit – a view Falk supports.

While avian flu isn’t expected to eradicate peregrine falcons,Falk predicts a “heavy dip” in numbers as the birds develop immunity,a process that could take years,or even decades. Furthermore,the virus’s potential to mutate and evade immunity remains a significant concern.

The Peregrine Falcon: A Species Navigating Conservation, Falconry, and Illegal Trade

The peregrine falcon, once teetering on the brink of extinction due to the widespread use of DDT, has made a remarkable recovery. However, this recovery is now facing new challenges as debates over its conservation status intensify, particularly concerning the practice of falconry and the persistent threat of illegal trade.

Currently listed on CITES Appendix I – the most restrictive category – the species is proposed for downlisting to Appendix II by Canada and the United States. This would allow for regulated international trade in birds legally obtained, primarily from captive breeding programs. Proponents argue that a well-established captive-bred industry already supplies the majority of birds used in falconry, minimizing the demand for wild-caught individuals. CITES data shows an average of 1,551 live birds exported annually from 51 countries over the past decade,with over 80% reportedly captive bred.

Though, concerns remain about the difficulty of monitoring and controlling clandestine trade. Even Canada, despite supporting the downlisting proposal, prohibits the capture of wild peregrine falcons nationwide (with a limited exception in Saskatchewan), while the U.S. requires permits for wild capture. Falconers defend limited wild capture, claiming it improves genetic diversity within captive populations and produces superior hunting hybrids.

The most significant threat stems from illegal trapping and trade, particularly in the Middle East. Falconry holds deep cultural roots in the region, dating back millennia, and has recently seen a surge in popularity with the rise of falcon racing – a sport offering multi-million dollar prizes. This demand fuels a black market for wild-caught birds.

Beyond the Middle East, falcons and other migratory birds are targeted by sport hunters in Egypt and Lebanon, who frequently enough post images of their kills on social media. pakistan serves as a key transit point for illegally caught birds destined for wealthy buyers in Arab countries.

[Image of a captive Peregrine Falcon]

The future of the peregrine falcon hinges on balancing the interests of conservation, cultural traditions, and the economic forces driving illegal trade. While captive breeding offers a enduring source for falconry, robust monitoring and enforcement are crucial to prevent a resurgence of the threats that once brought this splendid bird to the edge of extinction.

Peregrine Falcons: A Conservation Success Story Facing New Threats

The peregrine falcon (falco peregrinus),renowned as the fastest animal on Earth,boasts a remarkable recovery story.Once teetering on the brink of extinction, this majestic bird of prey has rebounded thanks to decades of dedicated conservation efforts.However, a new wave of challenges – including climate change, habitat loss, and emerging diseases – threatens to undo this progress, prompting calls for renewed attention and updated assessments of the species’ status.

From Near Extinction to Recovery

Peregrine falcon populations plummeted in the mid-20th century, largely due to the widespread use of organochlorine pesticides like DDT.These chemicals accumulated in the birds’ tissues, causing eggshell thinning and drastically reducing reproductive success. “The impact of DDT was devastating,” explains Dr. Emily Carter, a raptor biologist at the University of California, Davis. “It wasn’t just peregrines; many bird of prey species suffered catastrophic declines.”

the ban of DDT in the 1970s, coupled with intensive captive breeding and reintroduction programs, marked a turning point. Dedicated teams of conservationists carefully bred peregrines in captivity and released them into suitable habitats. “Reintroduction programs were incredibly labor-intensive, but they were essential,” says Mark Johnson, director of the Peregrine fund. “We had to carefully select release sites, monitor the birds, and provide supplemental feeding in some cases.” by the late 20th and early 21st centuries, peregrine falcon populations had rebounded significantly across North America and Europe, leading to their removal from the endangered species list in many regions.

New Threats Emerge

Despite this success, the peregrine falcon is far from secure. A suite of new threats is now impacting populations globally. Climate change is altering prey distributions and breeding habitats.Rising sea levels threaten coastal nesting sites, while changing weather patterns can disrupt migration routes and breeding cycles. Habitat loss,driven by urbanization and agricultural expansion,continues to reduce suitable nesting and foraging areas.

Perhaps the most concerning new threat is the emergence of avian influenza (bird flu). Highly pathogenic avian influenza (HPAI) outbreaks have caused significant mortality in wild bird populations worldwide, including peregrine falcons. “Bird flu is a serious concern,” warns Dr. Sarah Miller, a wildlife veterinarian with the U.S. Geological Survey. “Peregrines are susceptible to HPAI, and outbreaks can quickly decimate local populations.” The illegal trade in peregrine falcons, particularly in some parts of Asia, also remains a significant problem, further exacerbating population declines.

The Need for Updated Assessments

Conservationists are increasingly concerned that the current IUCN Red List assessment of the peregrine falcon – which classifies the species as “Least Concern” globally – does not accurately reflect the current situation. They argue that the combined impacts of climate change, habitat loss, bird flu, and illegal trade warrant a reassessment. “The IUCN assessment is outdated,” asserts johnson. “It doesn’t adequately account for the new threats facing peregrines, particularly in Asia and Africa.” Researchers are gathering data on population trends, mortality rates, and the impacts of these threats to advocate for an updated assessment.

Several researchers and conservation groups are actively monitoring peregrine falcon populations and working to mitigate these new threats. Efforts include habitat restoration, disease surveillance, and combating illegal trade. Continued monitoring and research are crucial to understanding the long-term impacts of these challenges and developing effective conservation strategies.

Banner image: Adult male peregrine (F. p. brookei) in Rann of Kutch, Gujarat, India. Peregrine falcons almost disappeared across North America and Europe in the early 1900s because of DDT and other pesticides. Image by Sumeet Moghe via wikimedia Commons (Creative Commons Attribution-ShareAlike 4.0 International).

Key Takeaways

• Peregrine falcons experienced a dramatic recovery following the ban of DDT and successful reintroduction programs.
• New threats, including climate change, habitat loss, avian influenza, and illegal trade, are now impacting populations.
• The current IUCN Red List assessment may not accurately reflect the species’ current status.
• Updated assessments and continued conservation efforts are crucial to ensuring the long-term survival of peregrine falcons.