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TBOSG Pacific Diver - Gavia pacifica
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Pacific Diver prior to 2007 had not occurred in the UK and was treated as conspecific with Black-throated Diver. Now a full species in it's own right great care must be take when either of these species is encountered; there is no doubt that Pacific Diver has been overlooked historically. Some indicators to Pacific are; chin strap, vent strap, lack of rear flank patches and a sleek more rounded head lacking the angularity of Black-throated Diver. They breed in western northern Canada and northern Siberia and winters at sea, mainly on the Pacific coast, or on large lakes over a much wider range, including China, Japan, North Korea, South Korea, USA and Mexico. It has occurred as a vagrant to Greenland, Hong Kong and Great Britain. |
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Earliest: Latest: 27th November 2009. off Severn Beach. Highest Count: One on on date. |
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There has been one Pacific Diver reported from S. Gloucestershire, on; |
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2009: (1) |
On the 27th November a winter adult was seen by five observers between 10:45 and 11:00 off Severn Beach in 'Burger Bar Bay'. This occurrence constitutes the first report of this species in S. Gloucestershire and the 4th British record. It was officially accepted by the BBRC as the first record for S. Gloucestershire on April 26th 2010. |
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Pacific Diver off Severn Beach. November 2009. © Martyn Hayes. |
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