the dark watchers

i read an article about a creepy figure know as the dark watchers. they spawn on mountains and are three in a half blocks tall and if seen by a player on survival mode they go hide if you kill one it will drop black dye sometimes but always have to drop a black eye there eyes are orange and have a black cape and hat on there texture the black eye can be used to craft a seeking spyglass if combined with one the seeking spyglass can see players  and mobs even if they are invisible.  they will attack if you hit them and they hate goats because they tend it hit you off the ledge. sure it gives off entity null vibes for being all black except for its eyes.