306 THE ZOOLOGIST. 
the mountain attention is drawn to a large bird sailing in view 
overhead, and, from its rounded wings and tail and its circling 
flight, we know that it is a Buzzard. However, this afternoon 
no Raven flies forth from the many crags that we search to 
challenge us with its ‘‘ croak, croak.” 
March 6th.—Snow mantles the mountain-tops as we set out 
to the Raven’s haunt. When we come to the large lake we 
notice that the Wigeon are still there, and also, on a large 
boulder on the opposite shore, is a Cormorant. Coming at last 
to the nesting-site of the Corbies, we keep on the look-out for 
their dark forms as they would fly from the crag, but they do 
not appear, neither does the Peregrine greet us with its call as 
we start on our climb up. A little wool has been added to the 
nest, so that very soon now it ought to contain the first egg, but 
it was March 25th, 1911, when we visited the nest and found it 
to contain eggs. The Ravens at last appear overhead, and 
after bellowing out their croak they fly spirally upwards to a 
great height, and, after watching this fine aerial performance, 
we descend into the valley, where six Stonechats and a small 
flock of Plover are seen. 
16th.—Owing to the state of the weather we decide to-day to 
go only for a short cycle ride, our chosen path taking us past a 
large rookery, and here we stop for a while. Some of the Rooks 
are already sitting, and others are busily engaged in getting 
material. Between the lot of them there is a terrific din, and 
here and there a battle-royal exists between those who prefer to 
steal material from the nests of others and the owners thereof. 
From the rookery we cycle on until we come to a small pond, 
where a Waterhen with its bobbing head anda pair of Wild Duck 
seem to be the only occupants. The piping note of a Dipper 
next attracts our attention, and then we see the bird itself as it 
darts swiftly over the pond. 
20th.—On visiting the Raven’s haunt to-day we find that the 
nest is in the same state as when last seen by us, and conse- 
quently we are greatly perplexed, for by now the nest should 
contain eggs. As we believe that there is but little chance of 
harm having befallen the Ravens, we come to the conclusion 
that they must have built a new nest elsewhere. A search 
among some of the rocks does not disclose it, and at length we 
