DIARY OF THE HABITS OF NIGHTJARS. 401 



down a few inches off, and then both birds churred, wagging their 

 tails from side to side in the usual manner. In a second or two 

 the sitting bird flew off, silently at first, but when she had gone 

 a little way gave a " quaw-ee." The other one sat where he 

 was for a second or so (not going on to the eggs), and then flew 

 after her. 



9.28. — Bird began to " churr " on eggs,* and did so at short 

 intervals in little bursts for a few minutes, as if it heard the voice 

 of its mate, which I believe it did, though I could not. 



9.50. — Other bird settled on elder-stump near, and kept 

 uttering a peculiar single note like "quo quo," which was answered 

 (but only occasionally) by a " churr" from the sitting bird. 



9.53. — The bird on the stump flew near to the one sitting, 

 which rose and joined it, and then both flew off quaw-eeing. 



9.55. — Bird flew on to stump, and kept uttering low single 

 note. In less than a minute it flew to eggs and sat on them. 

 Was still sitting at 10.35, when I came away. 



June 29th. — (Fine day, sunny.) 



12.7 p.m. — Found bird sitting in same position as yesterday, 

 head towards me, affording a very good front view. The bird 

 kept constantly quivering the feathers of the throat. Just those 

 particular feathers which make a sort of lappet dividing the 

 throat and breast, were in a continual state of trembling, or 

 vibration. The beak was very slightly open. I could catch no 

 sound, except just once, for a single moment, the faintest possible 

 " churr." There was a considerable wind, and the nettles all 

 around the bird were swayed backwards and forwards (though 

 the low plants were not to nearly the same extent). Yet no other 

 feather of the bird's body was stirred, and I particularly noticed 

 that one which projected a little from the side of the throat 

 rather lower down was quite steady. Moreover, with the nettles 

 still swaying in the wind, the tremulous motion I speak of would 

 stop for a instant or two, and then recommence. During this 

 time that eye of the bird which I could see was either shut or 

 very slightly opened. Splendid view of the bird brooding to-day. 

 The feathers of the breast are pressed outwards over the eggs, 

 so that the bird seems sitting on a square pedestal of its own 



* I have omitted to note bird's return- 



Zool. Mh ser. vol. III. t September, 1H99. 2 £> 



