The UK’s largest bird of prey has appeared at Loch Lomond for the first time in more than a century.

A pair of white-tailed eagles, also known as sea eagles, were first spotted at the nature reserve in March.

It is believed to be the first time the birds have settled at Loch Lomond since the early 20th century, after persecution and habitat changes led to their extinction across Britain around 1918.

The eagles, which have a wingspan of up to 2.5m, have since been observed "nest prospecting", or searching for suitable nest sites, suggesting they intend to stay.

A white-tailed eagle, commonly known as a sea eagle

Credit: PA

Their reintroduction to Scotland, first in the 1970s and again in the 1990s and early 2000s, is considered a conservation success. There are now estimated to be more than 150 breeding pairs.

Nature organisations are working with park rangers and police on protection measures to ensure the birds at the loch are not disturbed.

Paul Roberts, operations manager at NatureScot, said: "Sea eagles were extinct throughout the whole of the UK 100 years ago and now here they are within 30 miles of the centre of Glasgow.

He told the BBC: "They have a 2.5 metre wingspan, so they are like a flying barn door."