- William Bevan
- Jun 23, 2021
- 1 min read
Written for UK Youth For Nature's Oceans Campaign (20/06/2021)

This past month at UK Youth for Nature we have been celebrating our oceans and the incredible diversity of life which depends on them, including us. I have focused on birds as often overlooked inhabitants of the marine environment, heavily dependent on it as we are for food, the air we breathe, and the regulation of our climate. This time we complete our journey, finally arriving in the ‘High Seas’, the parts of our ocean beyond national jurisdiction which cover a staggering 50% of our planet’s surface area! Along the way we have discovered how a great wealth of bird species rely upon the UK’s coastlines and territorial waters all year round, including our overseas territories, and we have talked about how our country has a huge responsibility to protect globally important bird populations.
However, most of these birds are not just tied to one country but are international in their lifestyles. For example, almost the entire world population of Manx shearwaters (Puffinus puffinus) breed in the UK, but they only spend part of the year on our shores. From July to March they migrate and winter in the South Atlantic, mainly off the coasts of Brazil and Argentina. Even during the breeding season they can feed many hundreds of kilometres away if conditions are right, way beyond the national jurisdiction of any country. Whilst we can try to protect birds at their breeding grounds or within territorial waters, in order to ensure a stable future for all bird species this needs to happen in all of the areas which are important for them, including the High Seas.