154 THE ZOOLOGIST. 



from others. Nightingales could often be seen on the roadsides, 

 and were wonderfully tame. 



Sylvia cinerea. — Not very common. 



S. atricapilla. — In the woods and Casino gardens, &c. The 

 song of some birds seemed exceptionally fine and powerful. 



S. hortensis. — Common in the woods, and noticed on the 

 wooded slopes. In fine rich song. 



Regulus cristatus. — Appeared to be tolerably common in 

 spruce firs. 



R. ignicapillus. — I had a good view of a bright male in a 

 spruce by the side of the road passing through the Forest of 

 Ardenne. It looks rather a longer bird than the last, and is very 

 quick in its ways. 



Phylloscopus rufus. — Common in woods, gardens, and wooded 

 cliffs. 



P. trochilus. — On the 3rd I noticed several in song in a 

 wooded part of Lesse valley near Walzin ; but it was not 

 observed elsewhere. 



P. sibilatrix. — In the Forest of Ardenne there were two or 

 three about some oak trees, and I listened for some time to the 

 curious " chit-it-tit-titereeeeeee," beginning rather slowly and 

 going into a trill. There was another in song in a little oak wood 

 by the Lesse at Houyet. 



P. bonellii, — I had a long interview with a pair of Bonelli's 

 Warblers in the Bois de Roquet, near Dinant. The male sang 

 often. The song is a quick, rapid outburst, louder and fuller 

 than a Wood Wren's, but shorter, and with no preliminary slower 

 syllables. It might be lettered " chititereee " — a short outburst, 

 shorter and more rapid than the Lesser Whitethroat's, which it 

 somewhat resembles, but than which it is less loud and metallic. 

 A call-note (that of the male) I noted down on this occasion as 

 a kind of " creech creech creech," followed by one or two sharp 

 little notes, only sometimes heard. I first became acquainted 

 with this curious note in the high-lying cork and oak forest on 

 the spurs of the Atlas in western Tunisia. It puzzled me greatly 

 at first ; but finally I shot a male in the act of uttering it. I find 

 that at that time I noted it down as the call of the male, consist- 

 ing of five notes, and rendered it thus : " aych aych aych chit chit." 

 The pair I saw near Dinant frequented some oak trees, and came 



