When not in use, it's retracted by a woodpecker, & it may wrap around under the skull, beneath the skin
[DOC] [TLE] A Red-Bellied Woopecker's Tongue is Almost Three Times the ... [PAR] Oct 4, 2010 ... ... Times the Length of Its Beak and Wraps Around Its Skull When Retracted ... 
along with some other species of woodpecker, is so long that it can extend at ... 
goes below the base of the jaw and wraps behind and over the top of the ...