Identifying Cormorant and Shag

A black, reptilian-looking bird swims by low to the water - but is it a Cormorant or a Shag? Cormorants are more familiar and wide-spread, although Shags are more numerous. Let us help you to separate these two similar-looking species of water bird.

What effect might annual releases of non-native gamebirds be having on native biodiversity?

Henrietta Pringle reveals the work behind a recent paper on gamebirds and predation

Case Study

Climate change in a warming world

BTO science contributes to our understanding of future scenarios, and informing policies and conservation management strategies to help species adapt.

Blog

General licences and BTO

Andy Clements, BTO Chief Executive, sets out BTO’s position regarding the current debate about wildlife licensing.

Identifying Cormorant and Shag

Share this page

Related content

What effect might annual releases of non-native gamebirds be having on native biodiversity?

Climate change in a warming world

General licences and BTO