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until the 10th thj.it Swallows in any numbers reached the 

 home counties and eastern Midlands, while no marked 

 increase in East Anglia was recorded until the 21st, when 

 migrants were first observed passing the Suffolk lightships 

 and Spurn Head. A marked increase was also noted 

 throughout Wales on the same date. Subsequently 

 Swallows continued to arrive throughout the country and 

 pass north in a more or less continuous stream, but the 

 volume of migration through the western half would seem 

 to have been always greater than that through the eastern 

 counties. There were abundant indications in the records 

 from the light-stations and observers on both the east and 

 west coasts that northward passage-movements were in pro- 

 gress by both routes almost continuously until the third 

 week in May. 



Swallows were building in Cambridgeshire on the 27th of 

 April, in Wiltshire and Cumberland on the 1st of May, 

 in Somersetshire on the 3rd, in Suffolk on the 6th, in Surrey, 

 Middlesex and Shropshire on the 10th, and in Nottingham- 

 shire on the 11th ; while eggs were reported from Essex on 

 the 1st, from Cambridgeshire on the 11th, from Yorkshire 

 on the 19th, and from Staffordshire on the 21st. 



Chronological Summary of the Records. 



