French: Pétrel du Herald German: Heraldsturmvogel Spanish: Petrel del Herald
Chesterfield Islands, western Pacific
Tropical Pacific Ocean, breeding from Raine I (NE Australia) E to Easter I; also Indian Ocean, breeding on Round I (Mauritius)#R#R.
35–39 cm; 237–320 g; wingspan 88–102 cm. Polymorphic medium-sized gadfly petrel having pale, dark and intermediate morphs, always with white areas on... read more
Pale-morph on Henderson I most commonly gives a repeated “kyek-kyek-kyek...” sustained for 3–10... read more
Marine and highly pelagic, rarely approaching land except at colonies. Breeds on oceanic islands,... read more
Food and feeding
Very little known; diet of chicks on Ducie (Pitcarins) mainly squid (86% of samples, and 18 different species), fish (24%), crustaceans (10... read more
Season variable, probably depending on locality, e.g. July–Sept on Raine I (NE Australia); elsewhere, adults visit colonies almost year-... read more
Adults apparently fairly sedentary; immatures may be more mobile, dispersing over tropical and... read more
Status and conservation
Not globally threatened (Least Concern). Widespread, but probably uncommon; overall population postulated to be c. 150,000 birds, the vast majority of these in the Pitcairn... read more
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