Page 191 - Veterinary diagnostic imaging birds exotic pets wildlife
P. 191

CHAPTER 18  III The Head  187
































                    Figure 18-7  •  A pelican withdraws its beak from the water, its pouch bulging, forcing the bird to use its powerful neck muscles to make
                    the lift.







































                     Figure 18-8  •  A pair of just surfaced cormorants contest the ownership of a small fish. Note the raptor-like hook at the end of their beaks.




















                                                                                                                      2/11/2008   11:01:03 AM
           ch018-A02527.indd   187                                                                                    2/11/2008   11:01:03 AM
           ch018-A02527.indd   187
   186   187   188   189   190   191   192   193   194   195   196