Why only half of migratory songbirds survive their annual journey home
In short: Migration is a grueling test of endurance for nearly 200 species of songbirds. Alyssa Klavans explains the immense physical toll of these journeys and how landscape changes have made the trek increasingly perilous for birds traveling up to 7,000 miles.
The annual migration of songbirds is a high-stakes endeavor, with some species covering distances as vast as 7,000 miles to reach winter habitats. This journey is fraught with hazards, primarily driven by significant changes to the landscapes birds rely on for rest and refueling.
The danger is so extreme that statistics suggest only half of the birds that depart for the south successfully return home in the spring. Understanding these environmental pressures is essential for identifying ways to support these populations during their migration.
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- Summary by Intellect · source: Bird migration, a perilous journey - Alyssa Klavans
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