373 Mr. H. Saunders on the 



29. Accentor modularis (Linn.). 



The Hedge-Sparrow appears to be resident on the lower 

 grounds^ but it is not numerous. 



30. ACREDULA IRBYI. 



This form of Long-tailed Tit was several times observed on 

 the tall poplars along the highroad from Bayonne to Spain, 

 and also in the Argeles valley. 



31. Parus major, Linn. 



32. Parus ater, Linn. 



33. Parus c^ruleus, Linn. 



The Great, Blue, and Coal Tits were frequently observed, 

 the latter being especially abundant in the middle belt of 

 forests in company with the Crested Tits. 



34. Parus palustris, Linn. 



The Marsh -Tit appeared to be rather rare, and confined to 

 the lower grounds by the Nivelle and neighbouring streams. 



35. Lophophanes cristatus (Linn.). 



A few Crested Tits were always to be seen in the woods 

 round St. Jean-de-Luz, but in the great forest of Iraty and 

 the woods of the Higher Pyrenees this species was more 

 numerous than all the others together. 



36. SiTTA C^SIA, Wolf. 



The Common Nuthatch is abundant and resident in the 

 chestnut and beech woods, where its loud tui-tui-tui might 

 frequently be heard. 



37. Certhia familiabis, Linn. 

 The Common Creeper is resident. 



38. Tichodroma muraria (Linn.). 



The Wall-Creeper, in spite of the brilliant crimson of its 

 wings, is a species which may easily be overlooked on the 

 rocky precipices which form the sides of the deep gorges. 

 Mr. Seebohm told me that he had observed it about Pierre- 

 fitte in March 1882 ; but I was not so fortunate as regards 

 that locality. In the arid ravines of the Eastern Pyrenees, 

 where the sun still strikes fiercely in November, 1 have seen 



