KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 47. NIO 5. 



29 



Merops apiaster L. 

 Caprimulgus europceus L. 

 Apus apus (L.) 

 Chelidon rustica ( L. ) 

 Muscicapa ficedula (L.) 

 Lanius collurio L. 



isabellinus (Hempr. Ehr. ) 

 Budytes flavus (L.) 



campestris Pall. 

 A uthus cervinus (Pall.) 



Anthus trivialia (L.) 

 Phylloscopus trochilua (L.) 

 Ilippoluis /angufda (Hk.mi-k. EhB.) 

 Sylvia sylvia (L.) 

 Ag robates familiaris (Ménétr.) 

 Monticola saxatilis (L.) 

 Saxicola isabellina Cretzschm. 



» oenanthe L. 



» pleschanka Lepech. 

 29 species. 



The propagation of the birds in tropical countries is more or less dependent upon 

 at which time of the year the rainy season is. This is, of course, also the case in British 

 East Africa. Through force of circumstances I could not do much in the way of studying 

 the breeding habits of the birds. When I arrived to Nairobi at the end of December the 

 »small rains», which are said to prevail during November, had ceased long ago. Some 

 birds were found to have just fledged young ones, and they had evidently bred during 

 the small rains. In or at Nairobi the following species had fledged young ones: 



Motacilla vidua end of Dec. 



Myrmecocichla cethiops cry ptoleuca end of Dec. 



Cisticola robusta 4 th of Jan. 



Crateropus Jiypoleucus beginning of Jan. 



Lanius humeralis uropygialis 27 th of Dec. 



Turacus harilaubi 1 beginning of Jan. 



Stephanibyx melanopterus end of Dec. 



Pternistes leucoscepus infuscatus beginning of Jan. 



Corvus albus (= scapulatus) had fully fledged and fullgrovvn young ones at Juja 

 farm 18 /i, but a few days låter 81 /i, near Punda Melia the young Crows could not fly yet. 



A young Lanius humeralis uropygialis, and a young Dioptrornis fischeri in spotted 

 plumage but moulting were shot at Embu borna 25 /i. They had evidently been hatched in 

 the breeding season of the small rains as also must be the case with a young Aletlie polio- 

 cephala akeleyaz shot in the Kenia forest 27 /i, and a just fledged Irrisor jacJcsoni shot at 

 Escarpment 3 /i. Some young but fullgrown Lanius caudatus shot at Punda Melia 2 i 

 were probably also of a brood from the small rains. 



Fullgrown but young Anas undulata were shot between Kagio and Kutu 2i i. 



In the Guaso Nyiri district just fledged young birds of the following species were 

 met with in the beginning of Febr. on the acacia-steppe south of the river mentioned. 



Passer gongonensis, 5 /a Itiolu riv. 



Plocepasser melanorhynchus, 7 2 Lekiundu riv. 



Creatopliora carunculata, 3 /a Itiolu riv. 



Melcenornis äter tropicalis 5 /a Itiolu river. 



1 Also near Escarj)ment station in the middle of Jan. 



