Don't know what!

[Silverstreak]

I thought it was a leaf, till it took off and flew into the wood.

Any insect experts or anyones know what this guy is?

[Birdwing]

Probably a moth of some kind. Must ask the resident moth expert. Amazing camouflage/mimicry! Looks really like a dead leaf.

[fluorite]

your moth is Fascellina sp.,
please move to Moth Photography Category

[fluorite]

family : 尺蠖蛾科
Fascellina chromataria Walker
It's range : Sri Lanka,