FAUNA AND FLORA OF NORFOLK : BIRDS. 
733 
XIX. 
FAUNA AND FLORA OF NORFOLK. 
Additions to Part XL, Birds (Fourth List).* 
By J. H. Gurney, F.L.S., and Thomas Southwell, F.Z.S. 
Rewl ilUth March , 190 If. 
The following supplement to our list of the Birds found in 
Norfolk, which was laid before the Norfolk and Norwich 
Naturalists’ Society in 1887, contains mention of such rarities 
as are of importance which have appeared in this county during 
the [last live years. Should the Lesser White-fronted Goose 
obtained in The Wash not have been killed on the Lincolnshire 
side, it is an addition to the birds of the county, and this, with 
the Sooty Tern, raises the total for Norfolk to 310; or, if we 
reject Pallas’ Shrike (which wo accepted in our last list) as an 
invalid species, it leaves it at 309, a number which will compare 
favourably with that of any other county in England. 
Of these, 107 species may be regarded as breeding regularly in 
the county; twelve others as occasionally breeding here, and yet 
another twelve which there is more or less reason to believe have 
on rare occasions bred here ; fifteen species which formerly bred 
here have ceased to do so, and 164 non-breeding birds are, for 
the most part, winter immigrants or casual visitors. There are 
twenty-two others which, for reason of their specific value not 
being fully recognised, or their claims to have occurred in this 
county not being entirely satisfactory, we have thought it best 
not to include in the above estimate. 
During a period of five years there have been several important 
migrations, the last of which, and in some respects the most 
interesting, took place on the 19th and :20th September, 1903. 
It consisted almost entirely of small birds of the Passerine order, 
* Tlu> i revious lists will be found in vol. iv. pp. 259 and 397 ; vol. v. p. 642 ; 
and vol. vi. p. 501. 
