- Length
- 19–22 cm
- Wingspan
- 45–48 cm
- Weight
- 45 g
Presence in the Strait
Accidental pelagic migrant.
Identification
Larger than the Storm-Petrel, with longer wings lacking white band on underwings. White nearly encircles tail which is forked.
Movements
Westerly gales force them into the region of the Strait from the Atlantic Ocean; all records between October and January.
Bioestrecho editorial text. Last revised: 8 September 2026.