26B MR. C. F. M. SWTNNERTON ON THE 



Exp. 46. — Jione 21. Hungry ; crushed and ate a Terias (brown underside), 

 refused obstinately without tasting and with shakes of the head Acrcea serena, 

 tasted and rejected Mylothris agathina, crushed very thoroughly, evidently 

 wavering, and iinally threw away a Terias of the same species. 



She then readily ate five good-sized grasshoppers, refused without tasting an 

 Ypthima, but on my reoffering it tasted it well and rejected it. She then refused 

 without tasting a rather rubbed Neptis saclava, recognized and eagerly seized and 

 ate a Pyrameis cardtd, afterwards accepting, crushing, and eating without hesi- 

 tation a Neptis agatha. On my now again offering an Ypthima the bird refused it 

 without tasting, shaking her head vigorously and finally striking it out of the 

 forceps with the side of her bill. She then, however, readily accepted and ate the 

 Neptis saclava. 



I then gave her a large number of grasshoppers — fed her, in fact, till she 

 obstinately refused to eat any more, even of her apparent favourites. Neverthe- 

 less she now readily accepted and ate not only Hamanumida dcedal/us but a 

 Leuceronia, afterwards eating a Precis cehrene but refusing without tasting 

 a JSfeptis agatha. On my now pressing this on her, she tasted and rejected it, 

 refused obstinately without tasting a skipper and Lampides bcetica, but readily 

 ate a Pyrameis cardui. 



I now gave her three Charaxes hrutus and two Charaxes candiope. She ate 

 them with increasing slowness and held the last candiope for a long time in 

 her bill before finally swallowing it ; quite evidently she was almost replete. 

 I now offered a brown Crenis. She at first refused it without tasting, but on 

 my continuing to proffer it she accepted, crushed, and ate with evident liking not 

 only it but a Precis antilope © f . and a Precis madagascariensis. 



The roller now accepted and with marked disinclination and after prolonged 

 crushing ate a Charaxes hrutus, held for some time a Charaxes candiope and after 

 it a Charaxes ethalion as though loath to drop such tit-bits but too full to eat 

 them, and finally did crush and eat each. A Precis madagascariensis was then 

 more quickly crushed and eaten, and after an interval of three or four minutes a 

 Charaxes vologeses was well crushed and swallowed. It was evident, however, 

 that the bird had difficulty in getting it down, and a Charaxes hrutus was now 

 persistently refused without tasting. 



[Summary ; — 



1. P. cardui, H. dcedalus. 

 , C 2. iV. saclava, favourite grasshoppers. 

 '. ' J ^- Ypthima and T. hrigitta. 



^ 5^ . ' I 4. M. agathina : this possibly, on manner, above. 

 -. 5. ^. serena. 



The Leuceronia, P. cehrene, and N. agatha might also be placed above iV. saclava 

 and the Crenis, C. ethalion, and P. antilope go into Grade 1 were it not for the 

 possibility that their eating was the result of special stimulation. I.'he butterflies 

 eaten right at obvious repletion-point (C. hruttcs, C. candiope, C. vologeses, and 

 P. madagascariensis) may, I think, in spite of a similar objection, be placed with 

 some confidence in Grade 1. The low placing of favourite grasshoppers was 



