I have been reading with interest Albert Rosales' Humanoid Encounters 2010-2015 and have come on an interesting account of an almost unbelievable cryptid. According to the report, this was seen in 2015 in Peru. The creature is described as a horse with a human head. It was seen emerging from woods near the River Huallaga. This strange animal has been the source of some local rumors, though whether there have been other sightings is not clear. What it might be, I cannot say - the idea of the human head is, I would guess, due to misperception. The question we might ask is, misperception of what?
Details of the book are given on this blog a few entries ago.