The two chicks on Nest 4 were ringed on 10 July, 40 days after they hatched within a couple of hours of each other.
69 was absent throughout, but Mrs 69 kept a watchful eye on the process.
The chicks obeyed her calls to ‘play dead’ – thanatosis , lying motionless on the ground unless being ringed and weighed.
The nestcam footage suggested one chick was a little larger than the other, and that proved to be correct. Chick 2 now wears colour ring Blue 227.
He weighed 1480g. Blue 227 was named Belling, after the large burn that flows into Kielder Water near the dam. A couple more photos of him.
Chick 1 was given colour ring Blue 228.
He weighed 1400g. He was named Beldon, after a burn that rises in Northumberland and eventually flows into Derwent Reservoir on the border with County Durham. Ospreys summer at the reservoir in many years, and Kielder’s Blue 39 has been seen there.
69 arrived with a fish as the ringing party drove away from the area, but he didn’t share it with his family immediately. Eventually, the chicks had a late lunch.