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Conservation status: Amber

Shags are goose-sized dark long-necked birds similar to cormorants but smaller and generally slimmer with a characteristic steep forehead. In the breeding season adults develop a dark glossy green plumage and prominent recurved crest on the front of their head. In the UK they breed on coastal sites, mainly in the north and west, and over half their population is found at fewer than 10 sites, making them an Amber List species. Shags usually stay within 100-200km of their breeding grounds.

Overview

Latin name

Phalacrocorax aristotelis

Family

Cormorants and shags (Phalacrocoracidae)

Where to see them

During the breeding season at their large Scottish colonies on Orkney, Shetland, the Inner Hebrides and the Firth of Forth. Elsewhere they can be seen commonly around the coasts of Wales and South West England (especially Devon and Cornwall).

When to see them

All year round

What they eat

Fish and occasionally crustacea and molluscs.

Population

EuropeUK breeding*UK wintering*UK passage*
-27,477 pairs110,000 birds-

Distribution

Key

Illustrations

Characteristics

Shag (adult)

Shag
  • Size: bigger than mallard
  • Feather colours: brown, black, green
  • Beak colours: black/dark grey, yellow
  • Beak length: long
  • Beak thickness: long
  • Beak shape: long
  • Leg colour: black/grey, brown
  • Behaviour: part of flock, dives underwater

Shag (juvenile)

Shag swimming - juvenile
  • Colouring: Juvenile
  • Size: bigger than mallard
  • Feather colours: brown, black, white, green
  • Beak colours: black/dark grey, yellow
  • Beak length: long
  • Beak thickness: long
  • Beak shape: long
  • Leg colour: black/grey, brown
  • Behaviour: part of flock, dives underwater

Similar birds