Page 190 - Veterinary diagnostic imaging birds exotic pets wildlife
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Figure 18-5  •  A sparrow eyes a clump of frozen seed,
                                                                               showing off its short triangular beak.






























                     A

















                                                                                              Figure 18-6  •  A pelican executes a
                                                                                              splashy landing, providing a view of
                                                                                              its distinctive beak (pouch collapsed),
                                                                                              which from above resembles a
                                                                                              miniature surfboard with a beveled
                                                                                              center ridge (A). This design serves
                                                                                              not only to support the loaded pouch
                     B                                                                        but also to move under water with a
                                                                                              minimum of resistance (B).







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           ch018-A02527.indd   186                                                                                    2/11/2008   11:01:01 AM
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