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The Severn-Trent flyway is a migratory route, or 
Among the birds known to use the flyway are sea ducks such as
The Severn-Trent flyway is a migratory route, or flyway
A flyway is a flight path used by large numbers of birds while migrating between their breeding grounds and their overwintering quarters. Flyways generally span continents and often pass over oceans. Although applying to any species of migrati ...
, used by birds crossing Great Britain
Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is ...
from the Humber estuary
The Humber is a large tidal estuary on the east coast of Northern England. It is formed at Trent Falls, Faxfleet, by the confluence of the tidal rivers Ouse and Trent. From there to the North Sea, it forms part of the boundary between the ...
to the Severn estuary
The Severn Estuary ( cy, Aber Hafren) is the estuary of the River Severn, flowing into the Bristol Channel between South West England and South Wales. Its high tidal range, approximately , means that it has been at the centre of discussions in t ...
or vice versa. It follows the Humber
The Humber is a large tidal estuary on the east coast of Northern England. It is formed at Trent Falls, Faxfleet, by the confluence of the tidal rivers Ouse and Trent. From there to the North Sea, it forms part of the boundary between th ...
and its tributaries the rivers Trent
Trent may refer to:
Places Italy
* Trento in northern Italy, site of the Council of Trent United Kingdom
* Trent, Dorset, England, United Kingdom Germany
* Trent, Germany, a municipality on the island of Rügen United States
* Trent, California, ...
and Tame
Tame may refer to:
*Taming, the act of training wild animals
*River Tame, Greater Manchester
*River Tame, West Midlands and the Tame Valley
*Tame, Arauca, a Colombian town and municipality
* "Tame" (song), a song by the Pixies from their 1989 alb ...
, then the River Severn
, name_etymology =
, image = SevernFromCastleCB.JPG
, image_size = 288
, image_caption = The river seen from Shrewsbury Castle
, map = RiverSevernMap.jpg
, map_size = 288
, map_c ...
. The last of these is not connected to the other three, and so birds must cross the gap over the West Midlands conurbation
The West Midlands conurbation is the large conurbation that includes the cities of Birmingham and Wolverhampton and the towns of Sutton Coldfield, Dudley, Walsall, West Bromwich, Solihull, Stourbridge and Halesowen in the English West Midlands ...
, around Birmingham
Birmingham ( ) is a city and metropolitan borough in the metropolitan county of West Midlands in England. It is the second-largest city in the United Kingdom with a population of 1.145 million in the city proper, 2.92 million in the West ...
.
It is used by birds migrating locally, within Britain, and by those migrating to or from Northern
Northern may refer to the following:
Geography
* North, a point in direction
* Northern Europe, the northern part or region of Europe
* Northern Highland, a region of Wisconsin, United States
* Northern Province, Sri Lanka
* Northern Range, a ra ...
and Southern Europe
Southern Europe is the southern regions of Europe, region of Europe. It is also known as Mediterranean Europe, as its geography is essentially marked by the Mediterranean Sea. Definitions of Southern Europe include some or all of these countrie ...
.
Among the birds known to use the flyway are sea ducks such as common scoter
The common scoter (''Melanitta nigra'') is a large sea duck, in length, which breeds over the far north of Europe and the Palearctic east to the Olenyok River. The genus name is derived from Ancient Greek ''melas'', "black", and ''netta'', "duck ...
(''Melanitta nigra'') and vagrants from North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
such as lesser scaup
The lesser scaup (''Aythya affinis'') is a small North American diving duck that migrates south as far as Central America in winter. It is colloquially known as the little bluebill or broadbill because of its distinctive blue bill. The origin of ...
(''Aythya affinis''), along with European ''Aythya
''Aythya'' is a genus of diving ducks. It has twelve described species. The name ''Aythya'' comes from the Ancient Greek word (), which may have referred to a sea-dwelling duck or an auklet.
''Aythya shihuibas'' was described from the Late Mio ...
'' species.
References
Sources
* * {{cite book , last1=Knox , first1=Alan , last2=Parkin , first2=David , title=The Status of Birds in Britain and Ireland , date=2009 , publisher=Helm , isbn=978-1408125007 , url=https://epdf.pub/the-status-of-birds-in-britain-and-ireland-helm-country-avifaunas.html Bird migration flyways Geography of England