NO. 4 AVIAN GENUS CLAMATOR — FRIEDMANN 10$ 



and the didric cuckoo. The lone record involving the jacobin cuckoo 

 refers to the race vidua of the host, and pica of the parasite. 



Telophorus zeylonus (Linnaeus) Bakbakiri 



Additional instances of parasitism on this shrike by the jacobin 

 cuckoo bring the total number of cases known to me up to seven, 

 and make it clear that this bird is a fairly frequent and regular host 

 choice. Of the seven records, six refer to the nominate race of the 

 host, one of the grayish, western race phanus. 



C. DATA ON ADDITIONAL HOSTS OF CLAMATOR LEVAILLANTII 



The stripe-breasted cuckoo is still less often observed, and hence 

 less completely known, than jacobinus or glandarius. Observations 

 since my 1949 host catalog have served chiefly to emphasize the fact 

 that babblers of the genus Turdoides form the main reliance of this 

 cuckoo. Not only have numerous attitional instances of parasitism on 

 the arrow-marked babbler, T. jardinei, come to hand, but also two 

 more species of the same genus have been found to be parasitized. 

 A single record of parasitism on a coly has also come to my attention, 

 but this bird is at best only an irregular or a very occasional victim. 



On the whole, C. levaillantii, in its host choice resembles the Asiatic 

 population of C. jarobinus, but, as far as present data indicate, is more 

 generally restricted to species of Turdoides. 



One observation on the chief host, Turdoides jardinei, calls for 

 mention here. Jubb ( 1952, p. 162) watched a fledgling stripe-breasted 

 cuckoo with a family group of arrow-marked babblers and wrote that 

 the young parasite "... was able to imitate the chatter so char- 

 acteristic of babblers on the wing . . ." This would imply some 

 vocal adaptation to a host species, such as Nicolai (1961) has sug- 

 gested in some of the parasitic Viduhme. In both cases the sugges- 

 tion needs further support before it may be appraised. 



Colius striatus Gmelin Speckled Coly 



One record of this coly as a fosterer of the stripe-breasted cuckoo 

 has been reported. White and Winterbottom (1949) noted that an 

 tgg of this cuckoo was found in a coly nest at Ndola, Northern 

 Rhodesia, in December, by Hudson. This coly has also been found 

 to be victimized very occasionally by the jacobin cuckoo, but it is not a 

 regular host to either species. The typical race of the coly is involved 

 in the present record. 



