352 Mr. 0. Salvia’s Five Months’ Birds’-nesting 
alaribus albo brunneoque variegatis; remigibus et cauda 
fusco-uigris j corpore inferiore reliquo albo-flavescente j 
iride brunneo-flava; rostro magis virescente. 
Only about Bur-da-Rebschi or Djebel-tiar, a guano island, 
five miles distant from the Somali coast near Med, where we ob¬ 
served six or eight pairs ; probably also on Abd-el-Kuri and the 
cliffs of Cokotora. In November I found fledged young on Bur- 
da-Rebschi. The flight of the adult bird is waving, Albatros- 
like, and not so rapid as that of Sulci fuscci or the Cormorants, 
The young birds are stupid and easy to be caught by the hand. 
They seem to feed solely upon fishes. Not difficult to tame. 
[If not Sula cyanops of Sundeval, this species is new ! But Sun- 
deval calls the face and naked throat simply blue, the iris “flavis- 
sima,” the beak blue, olivaceous at the tip, the feet “olive” !! The 
Sula capensis is altogether a larger bird, and quite different in 
the elongate form of the gular membrane, which runs down the 
fore-neck in a narrow line. The Sula dactylatra of Lesson, 
which I have never seen in any collection, had the feet yellow. 
—Ed.] 
129. Pelecanus rufescens. 
Not rare south of the Tropic, in the Red Sea and Gulf of Aden. 
Very frequent near Massaua and Amphila. Abu-djirab, Arab. 
130. Phalacrocorax, sp. 
A flock at the end of November near Bender Gam (Somali). 
XXXIV .—Five months’ Birds’-nesting in the Eastern Atlas. By 
Osbert Salvin, B.A., Corr. Memb. Zool. Soc. (Part III.) 
[Concluded from page 318.] 
98. Pterocles alchata. (Pin-tailed Sand Grouse.) 
The extensive sandy plains termed the Harakta, of which El 
Tharf is one of the largest, are the only localities in which we 
met with this Sand Grouse. Like the following species, it 
makes no nest, but scrapes a slight hollow in the sand, in 
which it deposits its three eggs. These are laid in May, the 
young being hatched about the second week in June. The only 
species of Pterocles which occur in these elevated districts are 
