35 [ Vol. xxxix. 
’ Mr. Crirrorp Borrer remarked that it was exceptionally 
interesting to notice the spread of the Black-necked Grebe 
in the British Islands ; for, so far as he knew, the Sclavonian 
Grebe had not shown any tendency to increase as a breeding 
species. He had excellent reason for believing that in yet 
another locality, besides the Welsh and Hertfordshire colonies 
referred to by Mr. Oldham, several pairs of Black-necked 
Grebes had nested this year. 
Mr. Borrer also thought it would interest the members to 
know that a pair of Marsh-Harriers had nested and brought 
off young in Norfolk in the year 1915. 
‘Mr. R. H. Reap exhibited a collection of eggs of various 
species of Owls. 
Mr. P. F. Bunyarp exhibited mounted specimens of the 
nest-feathers and down of the Blue-winged Teal ( Querquedula 
discors) from N. Dakota, U.S.A., and made the following 
remarks :— 
“T have searched in vain for any description of these 
feathers; they do not appear to have been previously 
described. Of all the nest-feathers I have examined they 
are certainly the most beautiful and distinctive, resembling 
somewhat in general appearance those of the Mallard (Anas. 
boschas) ; they are also quite distinctive from those of the 
closely allied species. I exhibit mounted specimens of 
the Garganey, Common Teal, and American Green-winged 
Teal for comparison. 
“* Description :— 
“ Feathers, Type pale buff, slightly tinged pink; there is 
a large spot of rich dark brown which does not extend to the 
terminal end, a small central spot of a paler shade with one 
on either side—these four spots form a W-shaped space 
between the large and three small spots; the basal or 
downy portion is pale brown, whitish round the calamus. 
Measurements 32 mm. 
“Down. Pale chocolate-brown, whitish immediately above 
