The Big Biggleswade Starling RAS - horlayeencar11

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Tuesday, October 10, 2017

The Big Biggleswade Starling RAS

Denise Cooper-Kiddle and Derek Gruar write:

The BTO Breeding Bird Survey survey has recorded a 49% decline in Starlings across the UK since 1995. Why numbers have dropped so dramatically is not fully known. Retrapping Adults for Survival (RAS) projects are helping find out whether adult mortality is a possible cause.



Adult Starling. Photo by John Harding



My back garden in Biggleswade,

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