282 The Birds of Walney Island. 
The Sandwich Tern was once very common on Walney ; 
but, probably owing to the frequent disturbance, it had deserted 
its old home in favour of the Ravenglass preserve, until, two 
years ago, when it re-appeared in its former haunts. 
Every nest seen was surrounded by a white-washed circle 
of excreta, ejected by the birds whilst on the nest, a character- 
istic noticed in the case of the single nest found by the writer 
in 1907, which, however, was merely a depression or scratching 
in the sand, differing widely from the substantial structures 
of marram grass in this year’s colonies. 
ROsEATE TERN.—There still remains the possibility of the 
Roseate being on the Island, though no further definite evidence 
has been added to that given in 1907. 
SHELDUCK.—Very common; in fact, more birds were 
seen than in former years, and there were plenty of burrows 
with down about them. 
OYSTER CATCHER.—Common, and very noisy. 
Stock DovE.—Several were seen about the burrows in 
the sand dunes. 
STONECHAT.—After careful search the party was successful 
in discovering two pairs of this species—one feeding young in 
NESE. 
Altogether thirty-six species were noted on the Island or 
in the neighbourhood. 
Our thanks are again due to our friends of the Barrow 
Naturalists’ Society, and to the Duke of Buccleuch and his 
agent. 
ees 
Lincolnshire Boulders.—Through the kind aid of the 
Rev. A. C. H. Rice, Rector of Horsington, in the Lindsey 
division of Lincolnshire, I have been able to examine a boulder 
in his parish, which I took to be a block from the Spilsby 
sandstone, similar to the boulder No. I, in my note on Lin- 
colnshire Boulders in ‘ The Naturalist’ for 1909, p. 93, the 
position of which in situ has not been found. This additional 
boulder, which is highly fossiliferous, and very hard in texture, 
is 4 tt. 6m. om length; “agit. swide, and about itso am 
deep. On the surface it is a mass of fossils, principally ostreas,. 
with broken shell fragments and a fair number of belemnites. 
Prof. P. F. Kendall, to whom I sent the chippings, confirms my 
view of its origin, pointing out ‘ the usual lustre-mottling ’ of 
its class, and remarking on its containing more belemnites than 
he had hitherto met with in blocks of the same kind. The 
village of Horsington is some four miles north of the Stixwould 
Station, on the Great Northern line from Lincoln to Boston 
by the side of the Witham river.—F. M. Burton, Highfield, 
Gainsborough. 
Naturalist, 
