Large St. Helena Petrel
Large St. Helena Petrel
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The Desertas Petrel is a critically endangered gadfly petrel endemic to the Desertas Islands off Madeira. It is a large, dark-backed petrel with a unique, haunting call.
Where to spot
Breeds exclusively on Bugio Island in the Desertas Islands, Madeira, Portugal. Forages in the surrounding North Atlantic waters, including off the Iberian Peninsula and North Africa.
How to spot
Identify by its dark grey-brown upperparts, white underparts, and strong, fast flight with characteristic high arcs and glides. Observing near breeding sites requires boat trips; vocalizations at night are key for colony detection.
When to spot
Breeding season is primarily from May to October, during which birds can be observed from specialized pelagic trips around the Desertas Islands. Rarer in other months.
Where to spot
Breeds exclusively on Bugio Island in the Desertas Islands, Madeira, Portugal. Forages in the surrounding North Atlantic waters, including off the Iberian Peninsula and North Africa.
How to spot
Identify by its dark grey-brown upperparts, white underparts, and strong, fast flight with characteristic high arcs and glides. Observing near breeding sites requires boat trips; vocalizations at night are key for colony detection.
When to spot
Breeding season is primarily from May to October, during which birds can be observed from specialized pelagic trips around the Desertas Islands. Rarer in other months.
This species nests in deep burrows and fissures on steep, inaccessible cliffs of the Desertas Islands, making its breeding sites extremely difficult for predators to access.
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