COLUiMBIDJE. ^73 



lay but two eggs, but breed more than once in the 

 year : the male assists the female during incubation : 

 they feed their young from grains, which they dis- 

 gorge from their crops in a macerated state : tbey 

 fly with ease, and some of the long-winged species 

 with extremely great velocity, and for a considerable 

 period. Many natural groups are readily observable 

 in this family ; but our knowledge is not sufficiently 

 mature, from the ignorance we labour under with 

 respect to their habits, to enable us to subdivide them 

 into natural genera. I shall therefore be content with 

 pointing out the only new genus which has been 

 established in this family since my former account 

 was published, and adding some of the recently 

 described species. 



GENUS CCLXXIX.— TRERON, Vieillot. VINAGO. 



Generic character: vide Steph. v. xi. p. 105. 

 Vina GO, Cuvier. 



A. Fronte glabra. 



A. With the forehead glabrous. 



Sp, 1, Tr? calva. 



Vinago calra. Steph. v. xi. p. W 7.— A.fr'icsL. 



B. Fronte plumosd. 



B. With the forehead feathered. 



Sp. 2. Tr. aromatica. 



Vinago aromatica. Steph. v. xi. p. 106. — India, 



Sp, 3. Tr, olax. 



Tr. capita, nucha, hypochondriisque cinereo-plumbeis ; gulaalbida; 

 ventre crissoque virescentibus ; femorihus ventreque lateribus 

 rufo-fuscis; dorso supremo, scapulis, tectricibusque, alarum pur- 

 pur eo-f us cis ; uropygio rectricibusque plerisque atro-ardosiacis, 

 apicibus cinereis. 

 VOL. XIV. P. I. 18 



