Hi Stu and JD
I did some birding around Antalya and saw quite a few migrants, although I guess these aren't so likely in summer. You should find a good crop of Mediterranean species fairly easily e.g. Ruppell's Warbler, Cretzchmar's Bunting, Short-toed Eagle, Long-legged Buzzard, Woodchat and Masked Shrikes, Red-rumped Swallow and many others. The area around Dalyan is good for these species and also holds various water birds such as herons and terns. Kruper's Nuthatch should be found in any extensive areas of pine forest. Further north, Bafa Golu is a very good wetland, although it can be hard to work. There are good numbers of both pelicans in this area as well as many other wetland species. If you go to Ephesus, there is (or was) a very nice and easily worked wetland between the ruins and the coast. It can be viewed from the road. As with all such places it'll be better in the migration seasons but should still be interesting in summer. I haven't visited areas inland of here but Akseki, a site for Olive-tree Warbler and White-backed Woodpecker, is not far from Antalya. The Turkish 'lake district' is also supposed to be good. If you have time for longer excursions then the magnificent Goksu Delta at Silifke is well worth going to, as are the Taurus Mountains. These would produce a lot more Turkish upland and wetland specialities.
There have been quite a few threads and reports on BF on birding in Turkey so I'd recommend doind a search. There are also plenty of others who've visited the country who might provide further information. Have a good trip.