590 Mr. C. F. M. Swyunerton on 



result of his feeding in the night, — but to-day again there 

 seemed no reason to doubt the preferences so clearly shown. 

 They were 



(1) Hyphantornis j amesoni (white form, spotted blue form, 

 and one, rather set, of the Bulbul-liiie form), and Colius- 

 passer ar'dens. 



(2) Pycnonotus layardi (fairly hard), Colius minor (nearly 

 fresh and very fresh), Telephonus senegalus (fresli), Dryo' 

 scopus guttatus. Neglect of Bulbul-like eggs of H. jamesoni 

 was perhaps due to their resemblance, closer than the white 

 forms, to a Coly's or Dove's. 



Expt. 13. Feb. 9, evening. — Refused persistently a hard- 

 set egg of P. layardi and a fresh egg of C. striatus minor, but 

 readily ate a fresh T. senegalus egg, then refused persistently 

 one egg each of P. layardi, C. striatus minor, and D. guttatus. 

 On my adding another egg of T. senegalus, this, too, was 

 persistently ignored. Later I added one of A. albifrons, 

 which was treated in the same way, as was one of H. jamesoni 

 (Bulbul-like form) added a little later. But a Sitagra 

 ocularia egg added to them was at once eaten. 



Apparent preferences : 



1. Sitagra ocularia. 



2. Telephonus senegalus. "i 



3. Pycnonotus layardi (hard-set) and \ J P J > 



CoUus minor (fresh). J •' 



It would be interesting to know if the acceptance 

 of the first Telephonus egg was unregretted and to be 

 relied on. 



Expt. 14. Feb. 10. — Morning : after a mixed but not 

 large feed last night {A. albifrons nestling's head, six maize- 

 grains, milk, two good-sized grasshoppers). Refused per- 

 sistently, first a Coly egg alone, then the Coly egg and a 

 Bulbul egg, then a nestling Bulbul two days hatched, then 

 a part of a slightly older but quite unfledged A. albifrons 

 nestling, and, finally, an egg of the last-named species and 

 one of C. ardens. 



