KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 47. NIO 5. 93 



Lanius collurio L. 



Rohw. II, p. 622. 



Iii Jaiiuary this species was seen several times near Nairobi as for iiistance at »The 

 Homestead ». At Fort Hall it was seen 3 % 1911. 



Lanius isabellinus Hempr. Ehr. 



Rchw. II, p. 624. 



A male specimen in moult was shot 17 /i among some bushes in a dry river bed about 

 8 miles from Nairobi. Another specimen was obtained in the thornbush north of Guaso 

 Nyiri I4 / 3 . 



Corvidse. 



Corvus albus P. L. S. Mull. 

 (= Corvus scapulatus Daud. et auct.) 



Rchw. II, p. 634. 



Not very common around Nairobi b ut I saw it there a couple of times. At Ju ja farm 

 the first specimen was shot out of a family flock. 



It was numerous at Fort Hall, Kanyakeni, and Meru borna. 



In a solitary tree in the shamba-country south of Punda Melia fledged young crows 

 were seen and shot 21 /i 1911. 



In its habits it appears to resemble common European crows but I have never seen 

 any great swarms as is a common thing in Europé. As a rule this species is seen single, 

 in pairs, or family flocks. It did not seem to occur on the steppe or in the thornbush- 

 country north of Guaso Nyiri. 



Rhinocorax affinis (Rtjpp.). 



Rchw. II, p. 639. 



When we had crossed Guaso Nyiri and marched a day or two down the river we 

 arrived to a place where steep and rocky mountains rose above the otherwise flat thorn- 

 bush country. Around these mountains completely black Rävens were seen. The se- 

 cond morning one of them came near the camp, and I was struck by its remarkably short 

 tail which gave it an appearance quite unlike that of a common Räven. In this country 

 north of Guaso Nyiri it was seen now and then, and I secured specimens at Njoro and 

 Thera. I never saw any great number at any time. Once when we were skinning an 

 Impallah buck, which I had shot, a pair of these rävens came looking for prey. They 

 prowled also sometimes round camping places. 



I did not see it south of Guaso Nyiri (that is not very far atleast), and its occurrence 

 there and not further is a good example of the zoogeographical importance of this river 

 as a southern limit for many northeastern animals. 



