i8 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I46 



long-established ancestral relative. To this day C. levaillantii, as we 

 shall see, is parasitic chiefly on babblers. In India, when the C. 

 jacobinus stock gave rise, apparently in the northern part of its range 

 in the foothills of the Himalayas, to what has become C. coromandus, 

 the trend shown in the relatively recent use of laughing-thrushes by 

 northern jacobinus became well established in the new group. We 

 find today that laughing-thrushes, chiefly of the genus GarruJax are 

 the mainstay of C. coromandus. 



The tabular list of the known fosterers for each of the three races 

 of the pied cuckoo shows the remarkable degree to which the hosts of 

 the African serratus and the Indian pica and jacobinus differ. The 

 picture is not as clear in the case of the African population of pica, 

 as data on it are still rather sparse, and involve only five species of 

 hosts — a bulbul, Pycnonotus barbatus, three babblers of the genus 

 Turdoides (fulvus, riibiginosus, and leucopygia) , and a shrike, Telo- 

 phorus zeylonus. It may be expected that more extensive observations 

 will add further Timaliine fosterers to this list, as there is no reason 

 to suppose that African pica differ from Asiatic ones in their type of 

 host choice. 



HOSTS OF CLAMATOR JACOBINUS 



Host 

 Stigmatopelia senegalensis aequatorialis. 



Centropus grillii wahlbergi 



Halcyon albiventris albiventris 



Colius striatus minor 



Colius indicus indicus 



Dicrurus adsimilis adsimilis 



Campephaga phoenicea flava 



Pycnonotus cafer bengalensis 



Pycnonotus nigricans 



Pycnonotus capensis 



Pycnonotus barbatus layardi 



Pycnonotus barbatus fayi 



Pycnonotus barbatus tenebrior 



Pycnonotus importunus importunus 



Pycnonotus importunus noomei 



Phyllastrephus terrestris terrestris 



Aegithina tiphia humei 



Turdoides caudatus caudatus 



Turdoides earlei earlei 



Turdoides longirostris 



Turdoides malcolmi 



Turdoides subruf us subrufus 



Turdoides striatus sindianus 



serratus jacobinus pica 

 X 



