Shags like to spread their wings and warm themselves in the sun more than other seabirds because their feathers are not waterproof. However their wet feathers help them swim after fish for much longer.
The New Zealand king shag may be the world’s deepest diving shag, it only exists on a few rocky islands just outside the Marlborough Sounds. There are only 600 of these shags left in the world but the population is stable.