Stercorariidae
- South Polar Skua Stercorarius maccormicki
- Great Skua Stercorarius skua Rare/Accidental
- Pomarine Jaeger Stercorarius pomarinus Rare/Accidental
- Parasitic Jaeger Stercorarius parasiticus
- Long-tailed Jaeger Stercorarius longicaudus Rare/Accidental
Read more about this topic: List Of Birds Of Costa Rica