Well one word its phenomenal !
I stayed there for seven days at the beginning of Oct and now back for another stint. The numbers don't really paint the full picture. The viewpoints are perched on the side of the mountain looking North along the coastline and over the rolling hills towards Myanmar. From 8 o'clock onwards raptors are constantly in view and passage is pretty constant up until about 4pm. I think the big difference between this site and other raptor migration hotspots is that the views you get are exceptional. Birds use the thermals from the base of the mountain and some birds literally pass within touching distance. We are able to age most of the birds from details that you would only see on close birds - eye colour, mesial stripe width etc
On top of this the layout of the surrounding mountains means you can work out exactly how the birds are using the thermals, what they do when there is a weather or wind direction change, it is almost as if you can see the thermal lines that they are using to migrate.
Furthermore, people have only known about this site for a short period of time. Chukiat Nualsri discovered this site 6 years ago, he spent three years studying the migration and the visitors centre and platform 4 (where you can obtain the best views) was opened last year.Therefore at the moment there is a great feeling that the information we are gathering is really quite ground-breaking. Having unpicked the minefield of accipiter ID we are beginning to establish the true migrational status of Besra. Jerdon's Baza was once considered a rare bird indeed but numbers coming out of Din Sor are painting a picture that might indicate that it is simply secretive.
In addition, as Bob's article states its not all about raptors and we have a constant flow of Blue-tailed Beeeater, Barn and Red-rumped Swallow and Germaines Swiftlets with the occasional Needletails torpedoing past slow close you hear the whoosh from their wings!
In early October there is a ringing program - I ringed my first birds - Brown Shrike and Eastern Crowned Warbler and its also possible to get in field views of common Thai migrants, Yellow-rumped Flycatcher, Pale-legged, Arctic and Lanceolated Warbler and Siberian Blue Robin.
There is a large viewing platform which can accommodate big groups but currently only small numbers of mainly Thai birders seem aware of the potential of this site.
if you are interested you can follow this guy
https://www.facebook.com/robert.decandido.7?fref=ts
numbers from today included
35 Crested Serpent Eagle
c1000 Grey-faced Buzzard
6 Booted Eagle
3 Black Kite (lineaous)
41 Black Baza (probably the earliest date recorded)
2 Jerdon's Baza
350 Shikra
1 Peregrine (calidus),
+ the usual suspects - Chinese and Japanese Sparrowhawks, Oriental Honey Buzzard
