34 OUR SUMMER MIGRANTS. 



and Scotland ; and yet it is the fact that the 

 boundary line, over which it seldom if ever 

 flies, excludes it from Cornwall, West Devon ; 

 part of Somerset, Gloucester, and Hereford ; 

 the whole of Wales (a fortiori from Ireland), 

 part of Shropshire, the whole of Cheshire, 

 Westmoreland, Cumberland, Durham, and 

 Northumberland. I am well aware that the 

 Nightingale has been stated to have been 

 heard and seen in Wales, Cumberland, and 

 even in Mid-Lothian (see "Zoologist/' p. 241) ; 

 but, even if they could be relied on in every 

 case, which is doubtful, these instances can only 

 be regarded as exceptional. In those counties 

 only to the east of the line indicated can the 

 bird be considered a regular summer visitant. 

 Mr. Blyth has expressed the opinion 1 that the 

 Nightingale migrates almost due north and 

 south, deviating but a very little indeed either 

 to the right or left. "There are none in 

 Brittany," he says, " nor in the Channel Islands, 



1 Note to his edition of White's " Selborne," 1836, p. 141. 



