https://www.birdlife.org/sites/default/files/attachments/BL_ReportENG_V11_spreads.pdf
And an article about it:
Even familiar birds at risk of extinction, new study finds
Cliffs lying barren: why we can't afford to ignore the Kittiwake crash
If this becomes a reality, it would really help populations of Atlantic Puffins and Black-Legged Kittiwakes.