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08. Phylloscopus trochilus trochilus (I..)- 



We fonnd this species verj' common in March and the first week in April, near 

 El Kantara and Biskra, the first sjiecimen beiiis: obtaiiinl at Biskra as early as 

 Febrnary 26, 1911. 



<)'.1. Phylloscopus bonelli bonelli (Vie-ili.). 



We first came across Bonelli's Warbler at Biskra, on April 25, 1908, wlieu 

 it was qnite common in the so-called "mimosas" of Beni Mora. They were tlien 

 evidently still in migration. A male was shot at Tonggonrt on April 14, 1909. 

 We fonnd the species on its breeding-places in the woods above Lamb^se dnring 

 the first half of May 1909, whence we also have several specimens collected 

 by Fliickiger. Riggenbach fonnd this species in the sonth-western Atlas, in 

 May, at altitndes of abont looi) m, and on the Djebel S'chorr, in the province of 

 IJahamma, in Morocco, on May 11, 19o3. The same collector sent specimens from 

 Thi6s, in Senegambia, shot on March 16. 



In 1911 the species was common in the dayat of Tilrhempt in the middle of 

 April, and we also recognised it in the tamarisks by the river bed at Ghardaia as 

 late as Ajiril 23. 



70. Cettia cetti cetti (Marm.). 



We did not often come across this species in Algeria. A few were seen near 

 Biskra late in Febrnary 1908, and one was shot on Febrnary 20. In 1909 we 

 fonnd it near Hammam Meskoutine, where it had young in May; and in 1911 it 

 was not rare in the thick bnshes intermingled with Arundo donax along the river 

 near Hammam Mesknntine in Febrnary. Its loud metallic note could often lie 

 heard, but we only shot one specimen. 



71. Acrocephalus arundinaceus arundinaceus (L.) 



Half-way between Biskra and Tonggonrt, on April l>i, 1909, a Great Reed 

 Warbler was seen in the bnshes near some pond and swamp. The bird was, 

 however, not obtained, but shot at and lost. 



We also heard the song of many birds which must have been Great Reed 

 Warblers, in the reeds on Lake Fetzara, late in May 19o9, bnt were not able to 

 reach them, as no boat was available. 



72. Acroceplialus streperus. 

 We heard the song of Reed Warblers among the reeds in the middle of 

 Lake Fetzara late in May 1909, bnt were not able to reach them. Judging 

 from the song, as heard from a distance, they must have been -4. streperus. 



73. Acrocephalus schoenobaenus (L.) 

 Met on migration from April 4 to 18 at Biskra, Djamma and Kcf-el- 

 Dhor between Tonggonrt and Biskra, and in its breeding-home at Lake Fetzara 

 in North Algeria, on May 21. 



74. Hypolais icterina (VielL). 

 It was rather snrprising to find this specdes together with the— ai)parcntly— 

 commoner //. pobjijloltn in the month of May. '^^'e shot a male whicji sang 



