86 CATALOGUE OF BIRDS. 



remarkable degree, the ground colour being occasionally 

 blue, green, yellow, or white, I believe that one bird 

 always lays the same coloured eggs. 



I once removed three eggs from a small ledge on 

 the Bass Rock, and visiting the same spot, about ten 

 clays later, I found three more in precisely the same 

 situation, and so exactly like the former ones as to be 

 hardly distinguished from them. Again returning in 

 a fortnight, three more, similar in colour and corre- 

 sponding almost mark for mark with the others, were 

 obtained. No other Guillemots were breeding within 

 twenty or thirty yards of that part of the rock, and 

 though I frequently examined the spot from the sea 

 through the glasses, I never noticed more than the 

 three pairs frequenting that ledge. 



The specimens in the case were all obtained at the 

 Bass Kock, in the Firth of Forth, in June, 1867. 



PARTRIDGE. 



Case 86. 



It is a curious fact that Partridges and Pheasants, if 

 driven over water or towns, appear to get bewildered, 

 and, losing all power of flight, drop down, and suffer 

 themselves to be picked up, rather than rise again. 



Some people have a mistaken idea that a land bird 

 is unable to rise from water, but I have repeatedly 

 seen several species that have fallen wounded rise from 

 either fresh or salt water with the greatest ease. 



The first year that the Easter Volunteer Review was 

 held on the Downs in the neighbourhood of Brighton, 

 the wind was from the north, and during the sham 

 fight great numbers of Partridges were disturbed by 



