250 



HOW YOUNG BIRDS BREAK THE EGG SHELL. 



It will, be interesting to ascertain just how the young of such birds £8 

 the murre, a species of water bird which deposits its eggs in rocky cliffs on 

 our northern sea borders, manage to break the exceedingly hard egg shell in 

 which they are enclosed. On page 249 I give the cut of the head of an adult of 

 the ringed murre, and as will be seen, the bill is quite long in this species. 



Fig. 122. 



Young of Wilson's Ploveif» 



Fig. 123. 



Fig. 124 



Adult Wilson's THov'el', 



Young Kingfisher. 



