74 Mr. A. L. Butler on Birds collected in 



specimens are mottled all over with pale red and lilac, 

 others are similarly marked, but the markings are mostly 

 confined to the larger end. The markings vary considerably 

 in different specimens : in some they are larger and more 

 distinct, in others they are finer and more clouded. — O.-G.] 



EXPLANATION OF THE PLATES. 

 Plate I. 



Caprimulffus latest, p. 25. From the type. 



Plate II. 



ParmoptUa xooodhonsii, p. 67. Adult (below) and young, shewing 

 the white markings on the bill (above). 



II. — Contributions to the Ornithology of the Sudan. — 

 No. III.* On Birds collected by Captain E. P. Blencowe 

 in the Bahr-el-Ghazal Province. By A. L. Butler, 

 F.Z.S., M.B.O.U., Superintendent of Game Preservation, 

 Sudan Government. 



In December 1907, Captain E. P. Blencowe, of" the Army 

 Service Corps, who was proceeding to the Bahr-el-Ghazal 

 Province in connexion with the transport arrangements for 

 supplying the various military posts, kindly agreed to take 

 with him a native boy whom I had trained to skin birds, and 

 to collect for me such specimens as he had time to shoot 

 along his line of march. 



The following paper contains a list of birds which he 

 obtained, with the localities and dates added and a few 

 remarks. 



Captain Blencowe left the Nile at Shambe, and travelled 

 first to Rumbek (distance about 90 miles), crossing the Lau 

 and Naam Rivers; then he marched to the Tonj River, crossing 

 the Gell River on the way (distance about 75 miles over fiat 

 forest-country with black cotton soil) ; thence to Wau (about 

 70 miles — undulating, forest-covered, ironstone country) ; 

 from Wau to Ukanda (45 miles — country fiat, all forest) ; 



* See ' The Ibis,' 1905, p. 301, and 1908, p. 205. 



