[39 J 



These are grey eggs with a moderate amount of brownish speckling. The 

 small brown dots are fairly numerous and quite noticeable upon these eggs. 

 A comparison of the eggs of this set with those in the previous one reveals a 

 difference in ground colour and in size and amount of superimposed blotch- 

 ing. Although the two sets are from the same area, they are probably the 

 product of two different Cuckoos. Again, three foster species are involved. 



X. — Seven eggs, taken in the same district as the two preceding sets. 



These eggs again differ from the two previous sets, but amongst them- 

 selves constitute a very uniform group. The ground colour is a pale bluish- 

 green of a deeper tint than set K. The latter is a yellowish-green ; this set, 

 when placed alongside, looks quite different. The grain of brown speckling 

 is finer and does not run into large blotches as in set K. Four foster species 

 are involved. 



XI. — Two eggs, taken at West Clitheroe. 



Date wheu taken. 

 . 19th May 1913 

 . 22nd May 1913 



This is a pair of beautiful eggs of a general pale reddish hue, with 

 reddish-brown speckling thickly distributed, especially at the broad end. 

 The eggs are quite different in appearance from any of the other sets 

 described in this paper, whilst they are practically indistinguishable from 

 each other. There are two fosters in this case. 



Museum No. 

 5 

 9 

 16 



XII. — Three eggs, taken luar Huntingdon. 



Foster. Date when taken. 



. Hedge Sparrow . 



Whitethroat 

 Reed Warbler 



28th May 1913 

 5th June 1913 

 1st July 1913 



