Hi Ian,
At the beginning of June we had a week in Scotland too, staying at Boat of Garten near Aviemore.
Our best views of Osprey were at RSPB Loch of the Lowes, signposted from the A9 at Dunkeld. The top level of the hide gave superb views of the nest, far better than we ever saw at Loch Garten where the birds were a lot more distant. We called there on our way both north and south. It opens at 10 am as does Loch Garten. Watch along the A9 there too as we saw several Buzzard when travelling north and south.
Loch Garten was very good for both male and female Capers - the male was sat on a log by the Osprey nest wih the female beside him on the ground - was that the day you were there Golfnut ?
The Black Isle was definitely the place for Red Kite, right along side the A9. As you cross the bridge from Inverness make sure you call in at the first layby on the north side as there are several cameras covering the Red Kite nests, there were young on the nests when we were there, but I guess they may be gone now. The staff were very knowledgeable about where to get the best views though and there was plenty of information about them.
We struck out in the Findhorn Valley this year for raptors other than for Osprey, but we didn't go to the top of the valley this time, which is where we saw four Golden Eagles last year. Buzzards were a plenty last year too.
Even better views of Ospey can be found at the Rothmericus Fish Farm just south of Aviemore, where around 5.30 pm every day at least one bird does a fly past and sometimes catches it's tea in the lake. They charge £1.00 entry fee, though if the same day you visit Loch an Eilean, an excellent small loch for small woodland birds including Crested Tit, Crossbill and Redstart, then you can get in the fish Farm for free as you will have paid £2.00 for the car parking ;-)
Our best biridng locale of the week though was without doubt the paths to the south side of Loch Morlich, the red and white marked paths. We had a couple of visits and had our best bird counts there.
Hope this helps.