128 NOTES—ORNITHOLOGY. 
length and in detail the history as British of numerous non- 
indigenous species of mollusca which have been noted by 
conchologists. 
together the work is a valuable and remarkably interesting 
collection of facts bearing upon a subject which is of considerabl 
importance, and the author is to be congratulated upon the result of 
his labours. It is special matter for commendation that chapter and 
s 
dealing with similar subjects, and by giving the facts themselves in 
a classified and orderly manner, with the authorities for them, he has 
placed his readers under a real obligation. The publishers are also 
to be congratulated upon including in their series a work upon 
a subject so interesting to naturalists as the work now before us 
deals with. 
NOTES—ORNITHOLOG Y. 
Green Woodpecker near Ripon.—I have seen and heard a 7 ae hie 
esiag (Gecinus viridis), m ore than once this rage in a wood near m 
This bird is a rare visitant in ee locality. —R. A . SUMMERFIELD, North eraey 
Vicarage, Ripon, January 29th, 
Bittern and Sclavonian Grebe in Yorkshire Par Vee n at eee on 
the 20th January last, I called upon my friend Mr. , Haines, taxidermist, who 
had a Sclavonian Grebe (Podiceps auritus) to set up, shot a e same time and 
place as the Bittern. WILLIAM Hewett, Howard Street, York, oF eb. 23rd, 1894. 
Migration d the Yellow Wagtail.—Moracilla raii is kat tn one vd 
ary may be see 
isin 6a i 
out to sea and nm double back so as to Sane on this coast from the 
8 
2 
S 
- 
ue 
ae 
ve 
so, I d t think an argument cou d be based upon the Lec agmgeanes Yo 
in pa cular 
—G. H. Caron Haicu, Grainsby Hall, Great cameby, ‘Lincolnshire, 
Mach. 16th, 1894. 
Naturalist, 
