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Spring 2017 could see the return of osprey fledglings from previous years

Posted: Thursday 2nd March 2017 by foulshaw-moss-osprey-viewpoint

Adult osprey with young chicks on the nest at Foulshaw Moss Nature ReserveAdult osprey with chicks on the nest at Foulshaw Moss

Young ospreys will often not return from their first migration until they are around 2 years old. May this year be the first time we see a Foulshaw Moss fledgling return?

Juvenile ospreys will often leave their wintering grounds in the warmer climes later than the adult birds.

The youngsters may reach the nesting grounds in the UK as late as June, too late to breed that year, but they may show interest in nests and may even try to take over nest sites, interfering with breeding pairs, as they search for nesting sites of their own.

Ospreys do not usually begin to breed until they are 3 to 5 years old. A pair will often spend their first year together building a nest and establishing a territory ready to return and breed the following year.

Ospreys, especially the males, will often return to the area in which they fledged to breed so keep your eyes peeled for the possible return of Blue 5A, Blue 6A, and Blue 7A our 2014 fledglings this osprey season.

Osprey Blue 5A on the nest

Osprey Blue 7A on nest Osprey Blue 6A on the nest

If you would like to find out more about all the ospreys that have fledged at Foulshaw Moss Nature Reserve why not check out my other blog, Blue 35 and White YW’s off spring (that we know of)

Oh, and be amongst the first to hear when the ospreys have returned each year by signing up to our osprey e-news:


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Happy reading,


About Grace: A student placement gaining experience in wildlife conservation alongside Foulshaw Moss Nature Reserve Officer Paul Waterhouse.


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