White-tailed eagles, or white-tailed sea eagles, were once widespread along the whole of the south coast of England, from Cornwall to Kent, before being driven to extinction by relentless persecution that began in the Middle Ages.
It was believed that they could deplete populations of game animals, as they feed on various birds, rabbits and hares.
The species suffered huge declines in Europe during the 19th and 20th centuries and was driven to extinction in the UK, mainly through persecution.
It has since been reintroduced to the west coast of Scotland and more recently to the east coast, and a reintroduction programme is currently underway in Ireland.
As with many birds of prey, the species suffered huge losses in the 1950s and 1960s due to organochlorine pesticides such as DDT, which caused egg shell thinning.
The last pair bred on Culver Cliff on the Isle of Wight in 1780.
Following the reintroduction of White-tailed Eagles to Scotland – where there are now over 130 breeding pairs – Roy Dennis Wildlife Foundation was granted licences by Natural England and Scottish Natural Heritage to begin an English reintroduction.
In the UK white tailed eagles are strictly protected under the Wildlife and Countryside Act 1981 and the Nature Conservation (Scotland) Act 2004.
It is an offence to intentionally take, injure or kill a white-tailed eagle or to take, damage or destroy its nest, eggs or young.
It is also an offence to intentionally or recklessly disturb the birds close to their nest during the breeding season.
Violation can result in a fine of up to £5000 and/or a prison sentence of up to six months.
Despite this, threats still exist. The main current threat in the UK is persecution, predominantly through poisoning, something which has overshadowed the otherwise successful reintroduction programmes.
Illegal egg collection remains an additional threat.
In Scotland the best places to see white-tailed eagles are Mull, Skye and parts of the northwest Highlands.
Many parts of southern England are capable of supporting breeding and wintering White-tailed Eagles, but the Isle of Wight was considered the most suitable location for the reintroduction.
It is the last known breeding site of the species in southern England and is located close to highly suitable foraging areas in the Solent and surrounding estuaries.
It also has numerous potential nesting sites in woods and cliffs and quiet areas for immature birds.
And it is well positioned to facilitate the dispersal of eagles both west and east along the coast to sites such as Poole Harbour in Dorset and Pagham Harbour in West Sussex.
Source: Roy Dennis Wildlife Foundation/RSPB
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