Wildlife experts at Kielder Forest in Northumberland have been tagging chicks as part of a monitoring programme for rare Ospreys.
The six week old birds were ringed by Forestry Commission rangers who scaled trees to the nest so that a harmless and unique colour tag could be attached which helps identify them.
The endangered species began to breed in the region in 2009 for the first time in 200 years.The two chicks are expected to fledge in the next few weeks.
Northumberland Wildlife Trust is calling for volunteers to help with the fourth Kielder Osprey Watch at Leaplish Waterside Park this summer.
For the past three years breeding pairs of ospreys have arrived in Kielder in March and early April and stayed until early Autumn.
Activity on the nest tends to be mainly throughout July and August as the chicks hatch, are fed and learn to fly and hunt.
Another pair of rare ospreys has returned to Kielder Water & Forest Park in Northumberland.
The pair bred successfully for the first time last summer.
Earlier this month the original Kielder osprey couple – which produced the first chicks in 2009 – were also back for a fourth year running.