According to the Oxford English Dictionary, perched is in the passive in this sort of construction:The original sentence is not passive
Aha!According to the Oxford English Dictionary, perched is in the passive in this sort of construction:
perch (verb 1, meaning 5): transitive (in passive) To be settled on a perch; to be standing or seated in any elevated or somewhat precarious place. [...]
Hi, ThomasJust to expand a little:
The hawk perched (simple past) upon the treetop - it's the next thing the hawk did.
The hawk was perched upon the treetop - the hawk was sitting, perched, upon the treetop.
I hadn't spotted that the OED seems to be sitting on the fence as to whether The hawk was perched upon the treetop is a passive verb or not.Aha!OEDs at dawn, then - it must be a duel to the death