The Bird'sHeadPlate is a minor tectonic plate incorporating the Bird'sHead Peninsula, at the western end of the island of New Guinea. Hillis and Müller
south, the Philippine Sea Plate is bounded by the Caroline Plate and Bird'sHeadPlate. To the west, the Philippine Sea Plate subducts under the Philippine
boundary, is the plate's largest block of continental crust. [citation needed] Hillis and Müller are reported to consider the Bird'sHeadPlate to be moving