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 



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 * with a 

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



