PLATE XII. 



SUPRAMAXILLAEY AND NASAL BONES. 



{Natural size.) 



Fig. 1. Phalcobsenus australis. 



2. Falco anatum. 



3. Herpetotheres cachinnans. 



4. Micrastur semitorquatus. 



5. Pandion carolinensis. 



6. Ictinia mississippiensis. 



7. Antenor harrisi. 



8. Harpagus bidentatus. 



[a. Bony tubercle of the nostril. 

 b. Median ridge of the supramaxillary. ] 



