in the Eastern Atlas. 
305 
its course may be traced by the shaking of the reeds as it springs 
from one to another. The peculiar nest of this species—a 
beautifully-compact structure composed entirely of dead flag— 
is artfully concealed in the thickest parts ; and at Zana it can 
only be found by wading in mud and water up to the middle, 
and even then it is quite a chance to find one. The eggs from 
this locality are decidedly smaller than English and Dutch 
specimens. 
32. Calamodyta cettit. (Cettrs Warbler.) 
On one or two occasions, among the tamarisk-trees on the 
banks of the Chemora, I caught a momentary glimpse of a bird 
of this species—not more than was sufficient to recognize it. It 
appears to he shy, and not common in the Eastern Atlas. 
33. Calamodyta aquatica. (Aquatic Warbler.) 
At the head of the little marsh of Ain Djendeli I more than 
once observed a pair of this Warbler. We afterwards found it 
more abundant at Zana, where it was breeding. In its habits 
it much resembles the common Reed Warbler ( C . arundinacea ); 
the eggs also are similar. 
34. Calamoherpe turdoides. (Thrush-like Warbler.) 
The commonest species of the Sylviince in the marsh of Zana, 
where its incessant note, day and night, assails one*s ears. It 
breeds abundantly amongst the taller reeds. 
35. Pyrophthalma melanocephala. (Sardinian Warbler.) 
This is one of the most striking of the smaller species in 
North Africa. About Tunis and elsewhere in the Regency it is 
common, and extends along the ridge of the Atlas to Souk 
Harras, where we lost sight of it on entering the less wooded 
and more sterile portions of the mountain chain. 
36. Sylvia cinerea. (Whitethroat.) 
Observed during the first week in April between the foot of 
the rock of Djebel Dekma and the river Medjerda. 
37. Sylvia conspicillata. (Spectacled Warbler.) 
A true inhabitant of the Salt Lake districts, where it is found 
abundantly, frequenting the low shrubs that cover the uncul¬ 
tivated portions of that region. It is a shy and wary bird, and 
