Pacific Diver

Gavia pacifica (Lawrence, 1858) KD 33
Family: Gaviiformes > Gaviidae

Pacific Diver, Yoav Perlman

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.

Select a topic for more facts and statistics about the Pacific Diver

  • Breeding
  • Winter
1.4k records observations recorded by BTO surveyors
1.4k records



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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 can be found on the following statutory and conservation listings and schedules.


We have no population estimates for this scarce species.


This species is a rare vagrant and was recorded during Bird Atlas 2007–11 as shown on the map.

Pacific Diver winter distribution 2008-11
Britain and Ireland Winter Distribution 2008-2011.
More from the Atlas Mapstore.

Occupied 10-km squares in UK


This vagrant is too rarely reported to map distribution change.


Pacific Diver is a very rare winter vagrant.

Weekly occurence of Pacific Diver from BirdTrack
Weekly occurrence patterns (shaded cells) and reporting rates (vertical bars) based on BirdTrack data. Reporting rates give the likelihood of encountering the species each week.


Information about movement and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.


View a summary of recoveries in the Online Ringing Report.


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


For information in another language (where available) click on a linked name

Welsh: Trohwydd y Môr Tawel
Catalan: calàbria del Pacífic
Czech: potáplice pacifická
Danish: Stillehavs-lom
Dutch: Pacifische Parelduiker
Estonian: kirdekaur
Finnish: tundrakuikka
French: Plongeon du Pacifique
German: Pazifiktaucher
Hungarian: alaszkai búvár
Italian: Strolaga del Pacifico
Latvian: Klusa okeana gargale
Lithuanian: baltakaklis naras
Norwegian: Amerikastorlom
Polish: nur pacyficzny
Portuguese: mobelha-do-pacífico
Slovak: potáplica bledotylová
Spanish: Colimbo del Pacífico
Swedish: stillahavslom

Links to more information from

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