4 hitrodiiction 



original state. In contour-feathers the barbules give 

 rise to '' barbicels " which regularly end in little hooks 



crowD (vertex) 



hind-head {occiput) 

 ear coverts , auriculars. 



rape {nuc^, 



hind-neck {cervix)'' 

 back {dorsum\ 

 scapulars.--^ 



rump {uropygium) 



upper-tail coverts 



lore 

 orbit I forehead {/rons) 

 \ ,'. i / .nostril 

 ■ -■' ,•■' , cere 

 \/' .-'' ., ridge {cultnen) 



'ity\. maxilla 



'\,. cutting edges {tomia) 



mandible 

 gonys- 



throat {gu/a) 

 .""lesser coverts 



■fore-neck {jugulum) 

 . median coverts 

 " bastard wing {alula) 



greater coverts 



"•••breast {patus\ 



secondaries {remiges sicundarO) 



A Falcon 



To shew the nomenclature of the external parts 



that catch in the folded margins of the next row and 

 serve to produce a firm surface or " web " on each side 



