1900.] FAUNA OF THE WHITE NILE. 961 



On the 2nd of April, when returning through Lake No, we saw 

 some large flocks. On six days out of the twelve we spent on the 

 Bahr-el- Jebel we saw some of these ducks. On the return voyage 

 north we met flocks on five different days between Fashoda and 

 Omdurman, seeing some within half a day's steaming of that city. 

 On the 18th April I shot three ; they all had their white faces 

 tinged with fulvous. 



Chenalopex .egyptiacus (Briss.). 



Egyptian Geese are very numerous on the White Nile from 

 Omdurman to about Fashoda, on some days we saw thousands; they 

 were hardly ever out of sight along the banks as we steamed along : 

 from Fashoda on to Lake No they were not so numerous ; on the 

 Bahr-el-Jebel we met them only at Heliat Nuer and Shambe', and 

 then only a few at a time ; on the Ghazal I saw only about six 

 individuals during the six days we spent on it. On the 21st April 

 near Renk by the river's edge we saw a pair with a little party of 

 goslings. 



Casaeca butila (Pall.). 



On the 11th March near Omdurman a few Brahminy Ducks were 

 seen among the big flocks of Egyptian Geese. 



Dafila acuta (L.). 



Noted many Pintail on the 11th March near Omdurman, and a 

 few on the 21st March near Kaka. 



Spatula clypeata (L.). 



Shovellers were seen only on the 11th and 12th of March at the 

 northern end of the White Nile. 



EULIGTJLA EULIGTJLA (L.). 



A flock of about thirty Tufted Ducks were seen on the 11th 

 March near Omdurman, and one of about twenty on the 17th 

 March near Jebel Ain. 



Family Ibidid^e. 

 Ibis ^thiopica (Lath.). 



The Sacred Ibis was noted on 21 days out of the 47 we were 

 south of Khartoum ; it was fairly numerous on the White Nile 

 from close to Omdurman to Lake No, and on the Bahr-el-Ghazal, 

 Bahr-el- Arab, and Lake Ambadi ; we also saw a few on the Bahr- 

 el-Jebel between Heliat Nuer and Shambe. 



Hagedashia hagedash (Vieill.). 



PLEGADI8 FALCINELLUS (L.) 



These two species of dark-coloured Glossy Ibises were seen on 

 the White Nile south of Kowa and its tributaries. 



