By Roger Lovegrove, Iolo Williams, Graham Williams
The rugged nation-state of Wales has lengthy been a vacation spot for successive generations of naturalists, ornithologists, oologists and, latterly, birdwatchers. because the pioneering days of Willoughby and Ray, Pennant and Edward Llwyd, increasingly more intrepid visitors have recorded the natural world and different common riches of the mountains and coastlines of Wales. regardless of those beginnings and the newer 20th century trend for birdwatching, no quantity at the birds of Wales has been produced before to serve the expanding want for scientifically legitimate details for conservation reasons. within the years that experience handed because the first naturalists visited Wales, alterations of incredible scale have taken position within the Welsh geographical region that have had both dramatic affects at the local fowl groups. A succession of chook species have both been eradicated intentionally by means of the hand of guy - almost always birds of prey - or were dispossessed by means of alterations in land use, the unfold of industrialisation, urbanisation and toxins, tendencies which proceed this present day to the expanding detriment of even a few of our such a lot common nation-state birds. a lot high-quality habitat is still even if, and new species have are available in to colonise Wales and upload to the magic of its geographical region. This quantity units out for the 1st time the historic and present prestige of all of the poultry species present in Wales including their current distribution. the 3 authors, all employees of the RSPB in Wales, have among them an accrued adventure of a few eighty years of first-hand wisdom of birds within the Principality. Their wisdom and love of the birds and Wales itself makes this authoritative quantity a landmark either in Welsh and ornithological publishing
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Additional info for Birds in Wales
Vinicombe (1982) showed that only 43% of the August 1976 population remained on Anglesey's many shallow lakes the following January, II % having moved to the coasts and estuaries, with most of the missing 5% presumed to have moved elsewhere. g. g. 50 on the Inland Sea on 18 November 1989). The Dee estuary regularly supports small flocks of Little Grebes (maximum 24 at Sealand on I January 1979), but the largest concentrations are found in northwest Wales, with 30+ regularly seen on the Glaslyn estuary in Caernarfonshire (42 in November 1989) and smaller numbers on the Mawddach (18 in January 1989) and Broadwater in Merioneth (22 in December 1987).
Instead, they more often beat into the wind, maintaining air speed but, being captured in the air stream, actually progress backwards relative to the ground. When the depression causing the gale progresses to the north-east, the wind in Welsh waters veers around to the west or north-west before moderating. During this phase the displaced birds are able to beat out to sea again by flying obliquely across the wind and the day-long processions occur that are visible from the headlands and which delight the sea-watchers so much.
Gales alter the pattern completely and often result in displaced birds passing through inshore waters in spectacular numbers and increased variety. When south to southwest gales rage in the Western Approaches for a day or two, the birds are pushed downwind towards the Welsh coast. It is very likely that many of these birds are blown from great distances, some of them having previously passed down the west coast of Ireland or beyond, before being displaced by the gale. Naturally enough it is difficult to observe the actual mechanics of this displacement, especially from the shore.