1897.] F. Finn — Experiments ivith various Birds. 665 



Experiments with Hornbill. 



With these birds also my experiments have been few, but interesting 

 results were got from some of them. 



The species was the common Black and White Hornbill (Anthra- 

 coceros) and T experimented with two specimens, but the first bird, 

 which was allowed to go about the compound with clipped wings 

 was unfortunately soon stolen, and the second did not care about insects 

 at all. The following, therefore, applies to one bird only. 



December 8th, 1896.— Hornbill, though not eating table-scraps and 

 fruit very well, ate a Skipper, and ravenously devoured two grass- 

 hoppers. 



December 12th. — I offered the Hornbill some dry dead butterflies 

 from other birds' cages. It readily ate Catopsilias, Atellas, a bit of 

 Papilio demoleus and of some other butterfly ; also a Delias eucharis, 

 after rubbing this last. It took, rubbed, and refused Danais chrysippus 

 and D. genutia and Euplcea. 



I then offered it more butterflies, many of them dead and dry. 

 It ate several Catopsilias, one Huphina phryne, and several Junonias, 

 although it was not without trouble that I got the bird to eat one of 

 these last, and another it would not eat at all. It also refused one 

 P. demoleus, though eating another of this species. 



It would not eat D. chrysippus and genutia, nor Papilio aristo- 

 lochise, though the two former were fresh, and it afterwards ate many 

 dried grasshoppers. 



December XSth. — Offered the Hornbill, which had had some fruit, 

 two Catopsilias and two Danais chrysippus. 



It ate the Catopsilias, but took and refused the D. chrysippus. Also 

 on another occasion to day it refused a D. chrysippus. It ate, when 

 pressed, a protectively-coloured moth. 



SECTION III. 



Summary and Conclusions. 



I have nothing to add to what I said concerning Mammals and 

 Reptiles, &c, in the papers devoted to them ( J. A. S. B , LXV., Pt. II 

 1896, p. 42 ; LXVL, Pt. II, 1897, p. 528;, for I do not intend to compare 

 them with Birds, since my experiments with the former were limited to 

 one species of each class. I shall therefore confine these remarks to 

 Birds only. 



The common Babblers (Crateropus canorus) dealt with in my first 

 paper (J. A. S. B., LXIV., Pt. II, 1895, p. 344) ate the Danaine 

 butterflies readily enough in the absence of others, but when offered 

 a choice showed their dislike of these " protected" forms by avoiding 



