It is Long-tailed Shrike...
The rufous on the back of Burmese Shrike is quite intense, and Burmese Shrike looks relatively compact.
Photo here
http://orientalbirdimages.org/search.php?p=9&Bird_ID=2403&Bird_Family_ID=&pagesize=1
"O.B.I." is a good photo-reference site for many asian species.