loa 



They appear to have travelled so rapidly^ especially over 

 the coast line, that they passed in many cases unnoticed 

 by the observers, and their course through the country is, 

 in consequence, not very clear. 



It seems, however, that they came in along the coast 

 from Devon to Sussex ; but only a few appear to have 

 arrived in Sussex, and those not until after the arrival of 

 the main body further to the west. Nor did the Sussex 

 birds appear to spread northwards, so it may well be that 

 they reached that county by travelling along the coast 

 eastward from Hampshire. 



It may therefore be inferred that the large majority of 

 our breeding Swifts arrived in Dorset and Hampshire 

 between May 11th and 14th and spread thence all over 

 the country, Wales and the western half of England being 

 populated before the eastern half. 



We have no evidence of any migration of Swifts 

 through this country to the northern parts of Europe. 



Cheonological Summary of the Records. 



April 12 & 18. Somerset (a few). 

 „ 23. Surrey (1). 

 „ 27. Wiltshire (1). 



„ 28. Devon, Hampshire, Berkshire and Merioneth. 

 „ 29. Hampshire (increase). Devon, Berkshire, 



Merioneth and Isle of Man . 

 „ 30. Hampshire and Shropshire. 

 May 1. Devon (increase). Wiltshire, Shropshire, 

 Isle of Man, Sussex, Hertfordshire and 

 Yorkshire. ' 

 After this date only differences in numbers and 

 distribution are noted. 



May 2. Dorset, Denbigh, Anglesea and Glamorgan. 

 Merioneth (more distributed). 

 „ 3. Derby. 



„ 4. Hampshire (increase). Lancashire. 

 „ 5. Cheshire. 



„ 6. Lancashire and Shropshire (increase). Surrey 

 and Norfolk. 



