This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Puckwudgie (Native American mythology)
A Pukwudgie, also spelled Puk-Wudjie (another spelling, Puck-wudj-ininee, is translated by Henry Schoolcraft as "little wild man of the woods that vanishes"), is a human-like creature of Wampanoag folklore, found in Delaware, Prince Edward Island, and parts of Indiana and Massachusetts, sometimes said to be two to three feet tall.
According to legend, Pukwudgies can appear and disappear at will, shapeshift (of which the most common form is a creature that looks like a porcupine from the back and a half-troll, half-human from the front and walks upright), lure people to their deaths, use magic, launch poison arrows, and create fire.