NOVITATES ZOOLOGICAE XXII. 1915. 75 



22. Lanius excubitor elegans Swaius. 



Common in the Oiied-N(;a. All uests, old and new, were placed in Zixyphas 

 bushes. Clutches were taken from April 17 to 3U. 



23. Muscicapa coUaris Bechst. 

 An adnlt male shot at Biskra on April 5. 



24. Hippolals pallida opaca Cab. 



Undoubtedly nesting at Ain-Oussera and Hammam Meskoutine, but at Ain- 

 Oussera at least we were too early, as an unfinished nest was seen. 



25. Hippolais polyg^lotta (Vieill.). 



Fresh and full clutches of four eggs each were found at Hammam Meskoutine 

 on May 18, 27, and 28. The nests were placed in Zizijphus bushes from one to two 

 metres high. 



26. Sylvia nana deserti (Loche). 



This beautiful little Warbler is, as we saw in 1912, by no means rare in the 

 sand-district of El-Arich, between El- Alia and Guerrara. On April 1:3 and 14 we 

 found three nests with fresh eggs, one with hard-set ones, several with naked 

 young, and some others quite finished but as yet empty. The clutches consisted 

 here mostly of four, sometimes of five eggs. 



The nests stood this year all in the thick bunches of the Drin, Ai-iistida 

 pungens. All are deep for Warblers' nests, but some mnch more so than others, 

 the depth varying from 6 to 10 cm. They were here all built of grey, dry grasses 

 and fine stems, here and there interwoven and lined with woolly particles of flowers 

 and seeds and with insect cocoons, especially those of the various Myrmeleonides 

 which are so numerous in these districts, and of which I discovered so many new 

 species in l',(I2. 



The eggs agree with those described by Koenig and those fouud in 1909 

 and 1912. 



27. Sylvia deserticola Tristr. 



Quite commonly breeding in the mountain-woods of the Hants Plateaux 

 near Djelfa. On May 9 they had apparently not yet any eggs, and I saw a jiair 

 busy building a nest in a Rosemary bush. 



28. Sylvia conspicillata conspicillata Temm. 

 A few pairs appeared to be nesting in the bushes of the Oned Nga. 



29. Agrobates galactotes galactotes (Temm.). 



By no means rare in the Oued N^a, but only during the last days of Ai)ril 

 they began to come into full song, and they had no nests yet at that time. 



