BLACKCAP. 
] 27 
which is given as characteristic of those of the garden 
warbler. 
We used at school to find a nest about once in a 
season, in which the eggs were altogether of a beautiful 
rose-colour, probably the produce of a young bird—for 
we always noticed that the nests in which they were 
found were unusually slight, and easily seen through, 
so much so, that we then considered them to belong 
to a different species. This pink variety, which I have 
seen much more beautiful, is represented at fig. 2 ; it is 
I believe peculiar to eggs of the Blackcap, and does not 
occur in those of the garden warbler. 
Mr. Yarrell mentions this variety of the eggs, and 
supposes that the tint may be occasioned by partial in¬ 
cubation. This is not the case, incubation usually having 
the effect of deadening, rather than increasing the colour¬ 
ing of eggs. Last summer I had a nest of the Blackcap 
brought to me, the eggs of which were round and of a 
pure white. 
