XIX.] 



OF SELBORNE. 



LETTEE XIX. 



TO THOMAS PENNANT, ESQ. 



I HAVE now, past dispute, made out three distinct species of 

 the willow-wrens (Mota.cillce trochili) which constantly and in- 

 variably use distinct notes ; but, at the same time, I am obliged 

 to confess that I know nothing of your willow-lark. 1 In my 

 letter of April the 18th, I had told you peremptorily that I 







THE WILLOW-WREN. 



knew your willow-lark, but had not seen it then : but when I 

 came to procure it, it proved, in all respects, a very Motacilla 

 trockilus ; 2 only that it is a size larger than the other two, and 

 the yellow-green of the whole upper part of the body is more 



1 Brit. Zool., edit. 1776, octavo, p. 381. 



1 Hedge-warbler, (see Letter XXVI.) : Sylvia loquax, black legs ; Sylvia 

 trochilus, yellowish belly ; Sylvia sibilatrix, white belly. 



