First Sandwich Tern arrives at Cemlyn

The first Sandwich Tern (Thalasseus sandvicensis) of the year was spotted at the North Wales Wildlife Trust’s Cemlyn nature reserve on Anglesey today.

Sandwich Tern (Thalasseus sandvicensis) at Cemlyn Bay, Anglesey
Sandwich Tern performing aerial acrobatics

A group of 20+ of us were making preparations for their arrival by fitting boards on the weir to slow tidal flow into the lagoon where they nest, placing chick boxes on the islands and installing floating nest rafts.

Volunteers install boards into a weir to slow down tidal flow
Installing boards on the weir to slow tidal movement into the lagoon where Terns breed

Cemlyn is one of very few Sandwich Tern breeding grounds on the West coast of Britain and our rarest breeding Tern (Roseate Tern) has also been spotted here in previous years.

As one of the summer wardens this year, expect plenty more posts about the Terns in the coming months.

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