C. & H. ALEXANDER: SONG-PERIODS OF BIRDS. 371 



MIGRANTS. 



Nightingale [Daulias luscinia) . From its arrival to the 

 end of May, and occasionally to the third week of June. 

 (July Gth, 1906, at Wye, unusually late.) 



Whitethroat (Sylvia cinerea). From its arrival to the 

 middle, and occasionally to the fourth week, of July. 



Lesser Whitethroat {8. curruca). From its arrival to 

 the first week, and occasionally to the fourth week, of 

 July. Occasionally during latter part of August, and up 

 to a few days before its departure, but its late song 

 usually lacks the finishing "babble" and has a bat-like 

 squeak interspersed. 



Blackcap (8. ciLricapilla). From its arrival to the third 

 week of July. (August 31st, 1907, at Tunbridge Wells, 

 unusually late.) 



Garden Warbler {S.Jiortensis). From its arrival to the 

 second week of July. (August 1st, 2iid and Sth, 1907, at 

 Tunbridge Wells, unusually late.) 



Chippchaff (Phylloscopus ■nifiis). Occasionally from its 

 arrival to the end of March ; regularly on to the fourth 

 week of July. Occasionally in the third and fourth weeks 

 of August, regularly to the end of the fourth week of 

 Sej)tember and occasionally until its departure. 



Willow- Wren (P. trochilus). From its arrival to the 

 end of June ; occasionally during July ; regularly from 

 the end of July to the end of August, and occasionally to 

 the middle of September. 



Wood-Wren (P. sibilatrix). From its arrival to the 

 first week of July. 



Reed-Warbler (^Acroceplialus streperus). From its 

 arrival to the end of July. 



Sedge-Warbler (^A. ■phragmiti)<). From its arrival to 

 the middle of July. 



Tree-Pipit [Anthus trivialis). From its arrival to the 

 middle of July. 



Red-backed Shrike (Lanms collurio). From its arrival 

 to early June, but not regularly. 



