The international conservation community gathered in Nairobi, Kenya, on September 11, 2026, for the Global Flyways Summit, an event marked by the release of a sobering assessment of the planet’s avian biodiversity. BirdLife International, the world’s largest nature conservation partnership, unveiled its latest State of the World’s Birds report, which paints a bleak picture of the health of migratory species. The summit, co-hosted by Nature Kenya, served as the backdrop for a historic diplomatic and financial intervention: the signing of the Nairobi Flyways Declaration, a commitment by governments, financial institutions, and NGOs to synchronize conservation efforts across the entire span of migratory routes.
The Scale of the Crisis: A 45% Decline
The findings of the 2026 report are unprecedented in their scope and urgency. For the first time, the quadrennial State of the World’s Birds report focuses exclusively on migratory species—birds that rely on vast, interconnected networks of habitats spanning continents. The data reveals that 45% of all migratory bird species are currently in decline. Perhaps most devastating is the confirmation that one in nine species is now threatened with extinction.
This decline is not merely a statistical trend but a tangible loss of biological heritage. In 2025, the world formally acknowledged the extinction of the Slender-billed Curlew. Last recorded in a Moroccan lagoon in February 1995, its disappearance marks the first confirmed global bird extinction on the mainlands of Eurasia and Africa in recent centuries. The report highlights that this is not an isolated incident; six other migratory species have been confirmed or are strongly suspected to have vanished within the last 150 years.
The species faring the worst are those that depend on highly specialized, fragile ecosystems. Seabirds and shorebirds, which rely on coastal wetlands and open marine environments, are experiencing the most rapid population collapses. The primary drivers of these declines are well-documented, systemic human activities: the proliferation of invasive alien species, the rapid intensification and expansion of industrial agriculture, the accelerating impacts of climate change, and the persistent threat of unsustainable hunting and trapping.
Chronology of a Conservation Shift
The path to the Nairobi Flyways Declaration began with a gradual realization among scientists that site-specific conservation—protecting one park or one forest at a time—was insufficient for species that traverse thousands of miles.
- 1995: The last confirmed sighting of the Slender-billed Curlew occurs in Morocco, beginning a decades-long period of uncertainty that ended in its formal declaration of extinction in 2025.
- 2021: Multilateral development banks begin to integrate flyway conservation into their lending frameworks, initiating a massive shift in how conservation projects are financed globally.
- June 2026: The Global Environment Facility approves the Global Flyways Grant Mechanism, allocating nearly $9 million in direct grants and unlocking over $100 million in co-financing for wetland restoration.
- September 11, 2026: The Global Flyways Summit convenes in Nairobi, bringing together global leaders to sign the Nairobi Flyways Declaration and formalize the commitment to large-scale, cross-border landscape management.
The Financial Architecture of Survival
One of the most significant developments emerging from the summit is the scale of financial commitment. Since 2021, development banks have mobilized more than $6 billion in funding specifically targeted at conservation efforts that benefit migratory birds and the human populations that share their habitats.
The Asian Development Bank (ADB) has emerged as a major player, pledging $3 billion over the next decade. This funding is earmarked for the protection of at least 50 priority wetlands within the East Asian-Australasian Flyway. This project is significant not only for its biodiversity impact but for its human benefits, as these wetlands provide essential ecosystem services to nearly 200 million people.
Similarly, in the Western Hemisphere, the Development Bank of Latin America and the Caribbean has committed to mobilizing between $3 billion and $5 billion by 2050. This capital will be used to safeguard more than 30 critical landscapes and seascapes. These massive financial flows represent a "step-change" in how the international community approaches environmental protection, shifting from sporadic, small-scale grants to sustained, long-term institutional investment.
The Strategic Shift: Thinking at the Scale of the Flyway
The core argument presented by BirdLife International is that a "flyway" is not merely a path on a map, but a functional, interconnected chain of survival. If one link in the chain—a critical stopover site in a coastal nation or a breeding ground in the Arctic—is destroyed, the integrity of the entire migration route is compromised.
Dr. Stuart Butchart, Chief Scientist at BirdLife International and senior editor of the report, emphasized the role of migratory birds as "sentinels" for the planet. "Migratory birds are sentinels, and their declines reveal growing pressure on the natural systems that sustain us," Butchart stated. "But the science is equally clear: conservation works, with coordinated action preventing extinctions and helping populations recover."
The Global Flyways Programme, which served as the operational framework for the summit’s discussions, seeks to move beyond national borders. By working with 125 partners in 120 countries, the program facilitates cooperation between nations to manage entire migratory corridors, ensuring that protection efforts are not fragmented by political geography.
Responses from Global Leaders
The Nairobi Flyways Declaration received strong backing from high-level stakeholders, including Her Imperial Highness Princess Takamado, Honorary President of BirdLife International. In her address to the summit, she highlighted the geopolitical reality of the crisis: "Migratory birds do not recognize borders. They connect Asia to Africa, the Arctic to the tropics. The Nairobi Flyways Declaration acknowledges this reality—that it needs international cooperation and coordination to keep migratory birds safe."
From the perspective of African conservationists, the declaration is a validation of the continent’s role as a vital nexus for global migration. Dr. Paul Matiku, Executive Director of Nature Kenya, noted that the summit provided a platform for African perspectives on land management. "The birds that breed in Europe, Asia, and the Arctic depend on our wetlands, grasslands, and forests," Matiku explained. "The Nairobi Declaration and finance commitments recognize that African nations are not just stakeholders; we are stewards of solutions."
Martin Harper, Chief Executive of BirdLife International, echoed the urgency of the moment. He called for a broader mobilization of resources, noting that while the banking sector is rising to the challenge, the burden of success rests on a tripartite effort involving governments, private industry, and civil society.
Broader Implications and Future Analysis
The implications of the 2026 report are far-reaching. By confirming the decline of 45% of migratory species, the scientific community has effectively signaled that current environmental policies are failing to address the complexities of migratory biology. The success of the Nairobi Flyways Declaration will be measured not by the amount of capital pledged, but by the tangible recovery of bird populations over the next four years.
The emphasis on "flyway-scale" conservation represents a maturation of environmental policy. For decades, international agreements often focused on specific sites of international importance, such as the Ramsar Convention. While these remain critical, the new approach acknowledges that birds require a continuous chain of viable habitat. If a bird is protected at its wintering grounds but faces loss of stopover habitat due to agricultural expansion in a transit country, the species will continue to decline.
The integration of conservation finance into the portfolios of multilateral development banks suggests that the "business case" for biodiversity is finally gaining traction. By framing wetlands and forests as natural infrastructure that supports human economies—through water purification, flood mitigation, and sustainable agriculture—conservationists are finding common ground with financial institutions that were previously disinterested in biodiversity.
As the summit concludes, the international community faces a narrow window to reverse these trends. The death of the Slender-billed Curlew stands as a permanent reminder of what is at stake. The 2026 report serves as a diagnostic tool, and the Nairobi Flyways Declaration acts as the prescribed treatment. Whether the global community has the political and financial endurance to implement these solutions at scale will determine the future of the world’s most epic, and most threatened, natural phenomena: the migration of birds.
