Oi' >-01iXHUMBEJiLAJS'D AiS'D DrKHAM. 81 



82. BUTALIS, Boie. 



97. Spotted Flycaichee. B. geisola, {LinncBus.) 

 Jjliiscicapa grisola, Bewick, Hist. Brit. Birds, Ed. 1847, 1., 117. 



,, ,, Yarrell, Hist. Brit. Bii'ds, Ed. 2, I., 172. 



A common sj^ring-and-autuiuii migrant. 



Eamiiy. HIEUJiTDIlS'ID^, Vigors. 

 83. HIRUNDO, Linnaus. 



98. Swallow. H. rtistica, Linnceus. 



Sirundo rustica, Bewick, Hist. Brit. Birds, Ed. 1847, I., 299. 

 Yarrell, Hist. Brit. Birds, Ed. 2, II., 231. 



A plentiful spiing-and-autumn migrant, arriving in April, and 

 departing in September or October, a little earlier or later accord- 

 ing to the season. 



The numbers of this delightful harbinger of retui'ning summer, 

 and its congeners, have of late years considerably decreased in 

 our district, probably owing to the diminution of insects, conse- 

 quent upon the vast increase of chemical and other manufactories. 



84. CHELIDON, Boie. 



99. House j\LviiTiif. C. tjkbica, {Linnmus.) 



Hirundo urhica, Bewick, Hist. Brit. Birds, Ed. 1847, I., 305. 

 YaiTell, Hist. Brit. Bii'ds, Ed. 2, II., 245. 



A common spring-and-autumn migrant, arriving and departing 

 with the Swallow. 



85. COTYLE, Bole. 



100. Sand Mahtin. C. BiPAiirA, {Linnceus.) 



Svrundo riparia, Bewick, Hist. Brit. Birds, Ed. 1847, I., 307. 

 Yarrell, Hist. Brit. Birds, Ed. 2, II., 251. 



It breeds wherever there is a sandy declivity, and is the ear- 

 liest of our spring-and-autumn migrants. 



