28. Martin, 



29. Bullfinch, 



30. Bunting, 



Hirundo agrestis. 

 Pyrrhula. 

 Emberiza alba. 



All the breeding time ; from 

 May to September. 



From the end of January to 

 July. 



All singing birds, and those that have any pre- 

 tensions to song, not only in Britain, but perhaps 

 the world through, come under the Linnsean ordo of 

 passeres. 



The above-mentioned birds, as they stand numer- 

 ically, belong to the following Linnasan genera : — 



Birds that sing as they fly are but few : — 



