Another new bird for the patch today in the form of Eye-browed Thrush. However I didn't see one bird, I saw at least seven in a total of four locations, and suspect there were perhaps 10-20 present overall as I kept picking up their thin alarm calls, and got the impression I was hearing more than I was seeing.
Eye-browed Thrush is a common wintering bird in Thailand's forests (I saw a flock of 50+ at Kaeng Krachan NP last weekend) but according to Round (2008) it is an uncommon passage migrant around Bangkok and the Central Plains, with most records being of single birds. My suspicion is that the birds I saw today are a migrating flock that has dispersed through the park to feed up before continuing northwards.
Other interest today came in the form of late winterers which must be due for departure soon, including two Thick-billed Warblers, and two Black-naped Orioles as well as a single Taiga Flycatcher.