Species fact sheet by Global Register of Migratory Species - www.groms.de

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Spring and autumn migrations poorly known, as are details of winter range. Generally winters at sea and along coast from Pribilofs and Aleutians (Bering Sea) S to N Japan (Hokkaido) and S California. Most birds from British Columbia, Washington, Oregon and Kuril Is remain near breeding grounds during winter; those from California and Alaska move N and S, respectively. Main migration periods likely Oct and Mar.   (del Hoyo J, Elliott A, Sargatal J (eds), 1996)

• digitised by GROMS, after del Hoyo J A Elliott; J Sargatal (eds) (1996) - www.hbw.com,
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