Número de parellas de gaivotón (Larus marinus) no Parque Nacional. Breeding population of the Lesser black-backed gull in the National Park of the Atlantic Islands of Galicia.
| Vionta | Sálvora | Sagres | TOTAL PARQUE | |
| 2022 | 2 | 1 | 0 | 3 |
| 2021 | 1 | 2 | 0 | 3 |
| 2020 | 1 | 1 | 0 | 2 |
| 2020 | 1 | 1 | 0 | 2 |
| 2019 | 1 | 1 | 0 | 2 |
| 2018 | 1 | 1 | 0 | 2 |
| 2017 | 1 | 0 | 0 | 1 |
| 2016 | 1 | 0 | 0 | 1 |
| 2015 | 1 | 0 | 0 | 1 |
| 2014 | 1 | 0 | 0 | 1 |
| 2013 | 1 | 0 | 0 | 1 |
| 2012 | ||||
| 2011 | ||||
| 2010 | ||||
| 2009 | ||||
| 2008 | 0 | 0 | 1 | 1 |
| 2007 | 0 | 0 | 0 | 0 |
MARDEAVES 