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MarineCavity nestMedium · 176 g
ID tip
The Bonin petrel is a small gadfly petrel, 30 cm (12 in) long with a wingspan of around 67 cm (26 in). It has a white head with a black cap and face markings; overall the head often has a scaled appearance. Its pale grey upperparts have darker primaries and wing coverts creating an "M" mark across the back. The underwing is white with dark edging and a patch at the carpal joint and across underwing coverts. The tail is dark grey, and the rest of the plumage is white, except for a dark half collar on the breast. Like the rest of the Pterodroma petrels the black bill is short and hooked.
Text from Wikipedia, licensed CC BY-SA 4.0.
When to see the Bonin Petrel
One bar for each month, and every month is filled: this bird is recorded here in all twelve. The wide bar is April, the month with the most records.
Where to see the Bonin Petrel
The map shades 2 countries with regular records, and 3 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 United States, Taiwan, Russia.
About the Bonin Petrel
The Bonin petrel or nunulu is a seabird in the family Procellariidae. It is a small gadfly petrel that is found in the northwest Pacific Ocean. Its secretive habits, remote breeding colonies and limited range have resulted in few studies and many aspects of the species' biology are poorly known.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
Easily confused with
Pycroft's PetrelPterodroma pycroftiThe Pycroft's petrel is small, measuring 26 cm (10 in) in length and weighing between 112–198 g (4.0–7.0 oz).
Stejneger's PetrelPterodroma longirostrisStejneger's petrel is a medium-sized, rather elegant seabird. it has greyish upperparts and white underparts.
Trindade PetrelPterodroma arminjonianaThe Trindade petrel, also known as the Round island petrel, is a species of seabird and a member of the gadfly petrels.
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