Gavia adamsii (GR Gray, 1859)
Family: Gaviiformes > Gaviidae
An Arctic species, this is a scarce visitor to Britain & Ireland and possibly a regular migrant past the northern and western isles of Scotland; there are records in all months of the year (but fewer in summer).
White-billed Diver identification is sometimes difficult.
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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||15|
|% occupied in winter||0.5|
European Distribution Map
This vagrant is too rarely reported to map distribution change.
|% change in range in winter (1981–84 to 2007–11)||+150%|
White-billed Diver is a rare visitor in winter and autumn, though with an increasingly regular pulse of records in spring in northern Scotland.
Information about movement and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.
Lifecycle and body size information about White-billed 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.
|Field Codes||2-letter: WV | 5-letter code: WHBDI | Euring: 50|
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