232 Mr. A. L. Butler on the 



top of Erkowit Hill. I saw it occasionally between Wau 

 and Chak Chak during the same months in 1907, but it was 

 scarce in that district. 



111. Erythropygia ruficauda Sharpe. 



a. ? . Between Chak Chak and Dem Zubeir, 5. 3.07. 

 This was the only specimen o£ this pretty Warbler that I 

 saw. In habits and carriage it resembled a small Aedon. 



112. CiCHLADUSA GUTTATA (Heugl.). 



a. S . Gardein, 18. 1. 07. 



The specimen shot at Gardein was hopping about in a thick 

 " Hegiik " thorn-tree and singing loudly. I also saw the 

 bird once between Chak Chak and Dem Zubeir, and again 

 at Gardein on my return journey in April. 



113. CossYPHA HEUGLiNi Hartl. 

 a. <?. Khor Gitti, 29.1.07. 



Heuglin's Chat-Robin was fairly plentiful at the Khor 

 Gitti, keeping to the cover of the dense bushes which over- 

 hung the damp mud along the edge of the stream. It was 

 shy and difficult to shoot. I did not see it anywhere else, 

 but Best got a specimen on a khor between Chak Chak and 

 Dem Zubeir. 



114. CossYPHA verticalis Hartl. 



a. S • Roseires, Blue Nile, May 1905. 

 I am indebted to Mr. G. B. Middleton for my only 

 specimen of this bird, which I have not myself met with. 



115. Pratincola rubetra (Linn.). 



a. S juv. Khartoum, 30. 9. 07. 



b. Jjuv. „ 4,11.07. 



I saw the Whinchat five or six times near Khartoum in 

 the winter of 1907. 



116. RuTiciLLA PHffiNicuRUs (Linn.). 



a. S . Khartoum, 7. 10. 07. 



b. S' „ 23.10.07. 



c. c?. „ 1.11.07. 



d. S. „ 2.11.07. 



e. ? . Chak Chak, 7. 3. 07. 



Redstarts were common on Erkowit in March and April, 



