Just a quick mention for the underwatched Greek island of Kos. Though it was a family holiday I did manage to see eastern specialities such as Yelkouan Shearwater, Ruddy Shelduck, Roller, Black-headed Wagtail. Eastern Olivaceous Warbler. (eastern) Subalpine Warbler, Cretzchmar's & Black-headed Buntings.
Raptors included Bonelli's Eagle, Short-toed Eagle, Long-legged Buzzard, Eleanora's Falcon, Red-footed Falcon & plenty of Lesser Kestrels (which are far more common on the island than Common Kestrel!)
Cory's (Scopoli's) Shearwater, Greater Flamingo, Stone Curlew, Audouin's Gull, Gull-billed Tern, Alpine Swift, Red-rumped Swallow, Black-eared Wheatear, Blue Rock Thrush & Icterine Warbler were also seen.
I only bumped into one other birder during the week I was there and with the island being so underwatched it gives you the chance to find your own island rarities - on one day I found both Spur-winged Plover & Citrine Wagtail within the space of 15mins! (Anyone know how many records there are of Citrine Wagtail for Kos? - I can see no records of it on the few trip reports that exist for the island)
Other memorable sights were 102 Bee-eaters migrating through in one day and also seeing a flock of 80 Little Stints mostly in summer plumage.
It's also worth mentioning Kos is relatively small and so there's very little travelling time between sites on the island.
It might not quite match up to the quality and quantity of species that the more famous Greek island of Lesvos has but if you fancy something a bit off the beaten track then Kos is certainly worth a visit.
regards
Chris
Good to hear of birding on Kos. What literature did you use for site info and how happy were you with it/them?