Gavia pacifica (Lawrence, 1858)
Family: Gaviiformes > Gaviidae
Closely related to Black-throated Diver, Pacific Diver breeds across much of northern Canada and Alaska, migrating south to the Pacific coast of the USA for the winter. Understandably, this is an extremely rare visitor to Britain & Ireland.
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Status and Trends
Population size and trends and patterns of distribution based on BTO surveys and atlases with data collected by BTO volunteers.
This species is a rare vagrant and was recorded during Bird Atlas 2007–11 as shown on the map.
Occupied 10-km squares in UK
|No. occupied in winter||7|
|% occupied in winter||0.2|
This vagrant is too rarely reported to map distribution change.
Pacific Diver is a very rare winter vagrant.
Information about movement and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.
Lifecycle and body size information about Pacific Diver, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.
Sample sizes are too small to report Productivity and Nesting statistics for this species.
Sample sizes are too small to report Biometrics for this species.
Feather measurements and photos on featherbase
|Field Codes||2-letter: KD | 5-letter code: | Euring: 33|
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