170 Wonders of the Bird World 



Borneo, as my friend Mr. Hose tells us, a Parodoxure 

 (Hemigale) is a dangerous enemy, and Monitors and Tree- 

 Lizards also attack the home of the Hornbill, but the female 

 bird is generally equal to the occasion, and her sharp bill is 

 a sufficiently formidable weapon of defence. 



As to the conveyance of food by the male to the female, 

 a remarkable circumstance has been brought to light, viz. 

 that the fruit brought by the former is packed in a kind of 



An Enemy. 



envelope or bag, which consists of the epithelial lining of 

 the gizzard of the male bird. This phenomenon has been 

 well described by Professor Newton in his ■ Dictionary of 

 Birds' (p. 437). Alluding to the imprisonment of the 

 female, he says— " This remarkable habit, almost simultane- 

 ously noticed by Dr. Mason in Burma, Tickell in India, 

 and Livingstone in Africa, but since confirmed by other 

 observers, especially by Dr. Wallace in the Malay Archi- 

 pelago, has been connected by Mr. Bartlett x with a 

 1 'Proceedings of the Zoological Society for 1869,' p. 142. 



