The central position in the North Atlantic Ocean allows the observation of resident and regular wintering species. It is possible to observe several nesting seabirds and a large number of Azorean passeriforme subspecies.

 

It is here where you can find the most important nesting populations in the world of Cory's Shearwater (Calonectris borealis), and Roseate Tern (Sterna dougallii); and even bait for Storm Petrels and fulmars at sea.

 

The archipelago harbours approximately 30 breeding species. But the number of occasional species, driven by weather from both sides of the Atlantic and recorded in the archipelago, is approaching the 400, including some extremely rare from the Western Palearctic.