218 BIRD LIFE IN WILD WALES 



quite a quarter of a mile from their sanctuary. Coming 

 back by the G. rocks, early as it was (4 p.m.), I heard 

 a Fern Owl "jarring." I was not surprised, because 

 in Kent I have occasionally heard them doing so at 

 midday. 



June 21 st. The longest day, but by no means a 

 typical one. Went over to A. and hunted the rocks 

 there for Nightjars, after which I searched for a 

 reported " Raven rock " close by. I found what may 

 be it. but there was certainly no Raven's nest there, 

 either old or new, though in any case the birds would 

 have left it ere this. A pair of Kestrels were here, 

 and sorely agitated too, as well as many Jackdaws. 

 Numbers of young Daws were on the rocks just out 

 of the nest, and a flock of Rooks passing over thought 

 fit to mob one of the Kestrels, which cried out in its 

 alarm. Apropos, I was told by one who knows the 

 country that as he was riding over the E. hills one 

 day he saw the same thing happen, and the Rooks 

 would certainly have killed the Hawk had he not 

 interfered, for they had driven him into a small bush 

 on the open hill. In the evening went for a ramble 

 on the L. rocks, and flushed a pair of Nightjars, and 

 noticing a couple of Woodlarks with food in their 

 beaks, watched them to their nest, which, built on the 

 bare soil in a little hollow under a piece of bracken, 

 contained four young. There was a regular run to 

 this nest quite six feet in length. This was obviously, 

 too, a second brood. We also saw a peculiar Chaf- 

 finch's nest, made almost exclusively of wool felted 

 together. 



June 2$rd. To-day a pair of House-martins, pre- 



