214 OUR SUMMER MIGRANTS. 



livray says : " The substances which I have 

 found in its stomach were remains of coleo- 

 pterous insects of many species, some of them 

 very large, as Geotrupes stercorarius, moths of 

 great size also, and occasionally larvae. I have 

 seen the inner surface slightly bristled with the 

 hairs of caterpillars, as in the Cuckoo." He 

 adds, " as no fragments of the hard parts of 

 these insects ever occur in the intestine, it fol- 

 lows that the refuse is ejected by the mouth." 

 From its habit of capturing dor-beetles, the 

 bird in some parts of the country is known as 

 the Dor-hawk. Wordsworth has referred to it 

 by this name in the lines 



" The busy Dor-hawk chases the white moth 

 With burring note." 



Elsewhere it is called the Eve-jar, and Churn- 

 owl. The latter name is bestowed by Gilbert 

 White in his " Naturalist's Summer Evening 

 Walk": 



" While o'er the cliff the awaken'd Churn-owl hung, 

 Through the still gloom protracts his chattering song." 



In his 37th Letter to Pennant, the same author 



