Tiger Shrike or some called it Thick-billed Shrike (lanius tigrinus) is a small passerine bird which feeds on small insects and animals. It belongs to the genus Lanius in the Shrike family. Over in Peninsular Malaysia it is considered a migrant and winter visitor which can be found in abundance from end of August to end of May. Reportedly common in open country and most of the time seen near forest edges. This one is probably a juvenile in first winter plumage. Some local birders named it as "machine gun bird" due to its chattering sound in alarm which sounds like a GPMG.
Another shot of the "Machine Gun" bird.