A cloaked Creature(remember)

I remember of sightings of a creature a while ago while searching google,it was like a human shape creature apparently but it was cloaked into it's surrounding sounded very like the Predator of the film Predator,Anyone else know about this or remember reading about it.
I found this creature sighting very intresting but i forgot the name of the so called legendary creature :s please help thanks.

I remember hearing that the chupacabra can cloak into the background like a chameleon.

Could be that i beleive it was human figure though

ZOFG, ZOINKS ITS DA PREDADTER, RUNZ FOR HILLS ZOMG