132 STUDIES IN BIRD-MIGRATION 



Blackcap. 

 Spring. — 28th April to 3rd and 15th June. Chiefly latter half of May. 

 Autumn. — 24th August to 22nd November. Chiefly September. 



Garden-Warbler. 

 Spring. — 9th May to loth June. Chiefly mid-May. 

 Autumn. — 17th August to 25th November. Chiefly September. 



Barred Warbler. 

 Autumn. — 3rd August to 13th November. Chiefly September. 



Willow-Warbler. 

 Spring. — \^i\\ April to 6th June. Chiefly first three weeks of May. 

 Autumn. — 7th August to 13th November. Chiefly September. 



Chiffchaff, p. collybita abietina. 

 Spring. — 7th May to ist June. Chiefly middle weeks of May. 

 Autumn. — 26th September to i8th November. Chiefly late September 

 and early October. 



Yellow-browed Warbler. 

 Spring. — nth April, 1909. 



Autumn. — ^i6th September to 29th October. Chiefly late September 

 to mid-October. 



IcTERiNE Warbler. 

 Spring.— i,\h May to ist June. 

 Autumn. — 4th to 29th September. 



Sedge-Warbler. 

 Spring. — 7th May to 3rd June. Chiefly middle weeks of May. 

 Autumn. — loth August to 29th November. Chiefly September. 



Mistle-Thrush. 

 Spring. — 6th March to 6th May. 

 Autumn. — ist October to 20th November. Chiefly late October. 



Song-Thrush. 

 Spring. — 22nd March 1909, and 8th April to 22nd May. Chiefly late 



April to early May. 

 Autumn. — 4th September to 25th November. Chiefly latter half of 



October to third week of November. 



