The number of sea eagles in Scottish skies is higher than it has been for 150 years.
This year 36 chicks became old enough to fly, meaning there are now about 200 sea eagles in Scotland.
The endangered creatures were hunted for years until there were almost none left in 1916, but more were brought to Scotland between 1975 and 1985.
The plan was to help the birds breed again, and it's worked, according to the bird charity RSPB.
But some farmers are not happy because they say that that the huge birds of prey attack their animals and kill them.
To see if that's true, scientists have put special electronic tags on newborn lambs, and will know if anything happens to them.