Common Tern Eggs Had More PCBs, HCB and Mercury Than Oystercatcher Eggs in 40-Year Wadden Sea Study
Monitoring from 1981–2023 found higher PCB, HCB and mercury levels in common tern eggs than in Eurasian oystercatcher…
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News about Common Tern
Research, conservation and important developments connected to this species.
Older Common Terns Had More Mercury in Most Feather Types
A 2026 study of a long-term common tern population in northern Germany found that older birds had higher…
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Terns Showed the Largest Increase During Nine Years of Mink Culling on Norway's Coast
Bird counts from ten coastal sites in Flatanger found that terns, including common and Arctic terns, showed the…
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UK Seabird Monitoring Found Steep Declines While Great Black-backed Gull Trends Split Between Scotland and Wales
The 2026 UK seabird statistic reported long-term declines of 72% in natural-nesting lesser black-backed gulls, 51% in natural-nesting…
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