207 
YORKSHIRE NATURALISTS AT BOLTON WOODS 
AN ideal day favoured the very large gathering of naturalists 
who participated in the Union’s excursion to Bolton Woods on 
Saturday, May 2oth. All enjoyed the variety of charm of 
springtime in this lovely and romantic portion of the Valley 
of the Wharfe. <A pleasing feature was the excellent official 
Sectional representation, and the support given to the President, 
Mr) W. N, Cheesman, J.P. F.L.S:,, by the, presence of. four 
past Presidents of the Union, Mr. Riley Fortune, F.Z.S., Mr. 
W. Denison Roebuck, M.Sc., F.L.S., Mr. John ‘W. Taylor, 
MeSe., and. Dr. Harold, Wager; FURsS., BCLS: 
The area of investigation was from the Abbey to Barden 
Bridge ; the geological party, however, visited the Hambleton 
Quarries at the back of the Railway Station. 
An excellent resumé of the day’s work was given by the 
Sectional recorders at the meeting held at the close of the 
excursion. Thanks were accorded to His Grace the Duke of 
Devonshire, for the privileges given to visit his estate; to Mr. 
Riley Fortune for making the local arrangements, and to Mr. 
T. Roose and members of the Bradford Naturalists Societies 
for acting as guides. 
Mr. Roose exhibited a fine collection of flint implements 
found by him on the Rombalds, Hazelwood and Barden moors. 
VERTEBRATE ZooLocy.—Mr. H. B. Booth reports :— 
In all 54 species of birds were seen, of which 19 species were 
what are usually classed as summer migrants. Pied Fly- 
catchers were moderately common, and Wood Warblers 
relatively abundant—in fact I never remember having heard 
quite so many of the latter in Bolton Woods before. The 
three British nesting species of Wagtail were noted*—one 
young brood of Grey Wagtails having already just left the 
nest. The five ordinarily known species of Titmice were 
seen, including a pair of Long-tailed Tits, which latter appears 
to be returning to this district as a nesting species.f Bull- 
finches also appear to have slightly increased in numbers. 
On the other hand the Tree-Creeper appeared to have decreased 
from its comparative abundance there of a few years ago, and 
neither the Hawfinch (of which species several pairs have been 
known to nest for many years), nor any of the Woodpeckers 

* Exactly three weeks before this excursion, (viz., on April 26th), I 
noticed a male White-Wagtail just below the stepping-stones. After 
watching it for half an hour, I went for Mr. Roose, and asked him to 
try and keep his eye on it as a vava avis for the Y.N.U. excursion—more 
particularly if it should remain to nest. Although it was still there when 
I returned that evening, neither Mr. Roose nor I have seen it since. 
{ Mr. Roose informed me that there is another pair of Long-tailed 
Tits in another part of the woods. We went to look for them after the 
meeting, but without success. 
1916 Aug. 1. 
