256 Mr. A. L. Butler on the 



Cliak. They were usually seen in pairs or parties of three 

 or four. 



On January 9th, 1907, I saw from the steamer a Saddle- 

 billed Stork sitting on a great nest of sticks on the top of a 

 mimosa tree. This was on the E. bank of the White Nile, 

 some miles N, of Tewfikia. 



251. Leptoptilus crumenifer (Cuv.). 



The African Adjutant was common in the part of the 

 Bahr-el-Ghazal Province visited. 



252. Anastomus lamelligerus Temm. 



Common on the Bahr-el-Ghazal rivers. I saw breeding- 

 colonies of the Open-billed Stork and of the Sacred Ibis on 

 trees growing on rocky islets in the Nile just north of the 

 Shabluka Cataract, in Sept. 1907. 



253. Pelecanus rufescens Gm. 



We passed a fairly large breeding-colony of these Pelicans 

 in a grove of tall " Doleib " palms near Doleiba on January 

 20th. (The village takes its name from these palms.) If 

 the birds did their fishing in the Jur River they must have 

 had to carry food to their young a distance of forty miles, 

 and I do not know where they could have found a piece 

 of water large enough to supply the colony any nearer. 



254. Sterna anglica Mont. 

 a. c?. Khartoum, 15. 11. 07. 

 Abundant at Khartoum in the winter. 



255. Larus ridibundus Linn. 



a. $ . Dueim, White Nile, 10. 1. 06. 



This immature example of the Black-headed Gull was 

 kindly ffiven to me by M. de Vilmoriu. At the time when he 

 wrote the ' Birds of Egypt/ Capt. Shelley knew of no record 

 of its existence in Nubia. I saw a similar specimen at 

 Dueim on Jan. 4th, 1907, but this Gull is certainly rare on 

 the White Nile. 



256. Plectropterus rueppelli Sclat. 



After leaving Meshra-el-Rek 1 only saw the Spur-winged 

 Goose at Amien. 



