Here at Pak Sha O, I've had Grey Nightjar since 24th March and Hodgson's Hawk Cuckoo since 27th March. Also Brown Fish Owl calling on 24th March and 1st April. An extremely low-pitched call that would be easy to miss among the noises of the forest. No Koels here, though I did have Plaintive Cuckoo this morning, my first record here. The first Large Hawk Cuckoo this year was on 14th March.
GeoffC