960 CAPT. STANLEY S. FLOWEB, ON THE [Dec. 18, 



Eenk in March, and some of a very small species on the G-hazal on 

 3rd April. 



Piotus rcifus Daudin. 



Darters were noted on 32 days out of the 47 ; they were fairly 

 numerous all along the White Nile from Omdurman southwards, 

 and on the Sobat, Jebel, G-hazal, and Arab rivers. On Lakes No 

 and Ambadi they were very numerous indeed, in flocks on the 

 water, on the mud, in the papyrus, and on the small trees. Thirty- 

 five individuals is the most I have counted in a flock. 



Family Pelecanidje. 



Pelecantjs onoceotaltjs (L.). 



The Common Pelican was noted on 10 days out of the 47, always 

 in flocks of from fifty to ninety or even more individuals, along the 

 White Nile from Jebel Ain southwards, on lakes by the Bahr-el- 

 Jebel to the south of the Heliat Nuer, and on Lake Ambadi and 

 other sheets of water connecting with the Bahr-el-Ghazal. 



Pelecanus eufescens Gmel. 



This elegant small Pelican was noted on 28 days out of the 47, either 

 solitary or in small parties, along the White Nile from Omdurman 

 southwards, and on the Zeraf, Jebel, Ghazal, and Arab rivers, and 

 on Lake Ambadi. Two birds of this species were so inquisitive as 

 to swim up to within ten yards of the steamer one day. 



Family PHffiNicoPTEBiDjE. 



Only once did I see any Flamingoes — on the 22nd of March, 

 near Fashoda, two adults and one halfgrown young one walking 

 together on a sandbank ; they were probably Phceniconaias minor 

 (Geoffr.). 



Family AnatidjE. 



Plectroptebtjs sp. inc. 



Spur- winged Geese were noted on 13 days out of the 47 ; on the 

 White Nile from near Omdurman to Fashoda, on the Bahr-el-Jebel, 

 and on Lake Ambadi, where they were numerous. 



Dendroctcna yiduata (L.). 



The White-faced Tree-Duck, or "Whistling Teal" as it is 

 commonly called in the Sudan, was first seen on the 23rd of March 

 between the Sobat and the Bahr-el-Zeraf, then again on the 27th 

 on the Nile and on Lake No ; on the 29th we saw a few on the 

 Ghazal and flocks of hundreds on the Bahr-el-Arab ; on the 30th 

 and 31st we saw them on Lake Ambadi in untold thousands, their 

 whistling noise could be heard all day, as numerous flocks of from 

 fifteen to fifty individuals kept flying along before the gunboat, 



