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MarineCavity nestMedium · 145 g
ID tip
Like all prions, they are blue-grey above and white below with a dark "M" on their back to their wingtips. They have a white eyebrow and a dark line extending from below the eye almost to the neck. Their tail is wedge-shaped and grey with a black tip, their bill is blue-grey, and their feet are pale blue.
Text from Wikipedia, licensed CC BY-SA 4.0.
When to see the Slender-billed Prion
One bar for each month. Filled bars are the 7 months with records; pale bars are months with none. The wide bar is November, the month with the most records.
Where to see the Slender-billed Prion
The map shades 6 countries with regular records, and 4 more in a lighter tone where the bird turns up only as a stray. Everything unshaded has no records. Countries are listed below the map.
Recorded as a rare visitor in South Africa, Peru, Réunion, Zimbabwe.
About the Slender-billed Prion
The slender-billed prion or thin-billed prion, is a species of petrel, a seabird in the family Procellariidae. It is found in the southern oceans.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
Easily confused with
Antarctic PrionPachyptila desolataThe Antarctic prion has an overall length of 27 cm (11 in), a wingspan of 61–66 cm (24–26 in) and weighs 150–160 g (5.3–5.6 oz).
Broad-billed PrionPachyptila vittataThe broad-billed prion has the usual prion colours: blue-grey upperparts, white underparts, and the ever present dark "M" across its back and wings.
Fulmar PrionPachyptila crassirostrisThe fulmar prion is a species of seabird in the family Procellariidae, found in the southern oceans.
Side by side: Fairy Prion vs Slender-billed Prion · Antarctic Prion vs Slender-billed Prion
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