VALIDITY OF SOME FORMS OF MIMICRY. 721 



55. The Grey-headed Flycatcher. Gulicicapa ceylonensis . 

 Jerdon says it feeds on small insects. 



56. The Indian Paradise Flycatcher. Ter2:>siphone paradisi. 



Partial migrant. 

 See correspondence {infra, pp. 728 & 730). 



57. The Indian Black-naped Flycatcher. Hypothymis azurea. 

 Mr. Oswin Wickwar has given me the following interesting 



note : — 



" I watched two flycatchers of this species diving into a small 

 pond evidently in search of some aquatic insect. They both dived 

 in the most determined manner about five or six times, and, 

 although I looked carefully, I could not find any insects on the 

 surface of the Avater. They did not swoop down and just touch 

 the surface of the water in the manner of swallows, but deliberately 

 dived in with a splash like a kingfisher ; there was a momentary 

 pause, and then they fluttered back to the same perch or one near 

 about where they started from." 



58. The White-browed Fantail Flycatcher. Rliipidura 



alMfrontata. 

 " The chief food consists of mosquitoes and other small dipterous 

 insects, as also the small Cicadella." (Jerdon.) 



Fam. TuRDiD^. 



Subfam. Saxicolin^. The Chats. 



" The Chats feed entirely on insects they capture generally on 

 the ground from a fixed perch, such as the summit of a stone, a 

 stalk of grass, or a branch of a bush, and then return at once to 

 their post of observation." {Oates.) 



59. The Southern Pied Bush-Chat. Pratincola atrata. 



" The food consists of insects and larvre of various kinds, which 

 they take chiefly on the ground." This bird is also known as the 

 Nuwara Eliya Robin ; it has very much the habits of the 

 Stone-Chat. 



60. The Black-backed Indian Robin. Thamnobia fidicata. 

 Has been known to capture Neptis varmona ; it usually feeds 



just at sunset and as long as there is light. 



61. The Magpie Robin. Copsychus saidaris. 

 See experiments on birds in Colombo (p. 737). 



62. The Shama. Cittocincla viacrura. 



" Those shot in Ceylon seemed to be entirely insectivorous, 

 the food consisting of small beetles, ants, flies, etc." 



