126 THE BIRDS OF BRECONSHIRE. 
BLACK-THROATED DIVER, 
Colymbus arcticus, and 
RED-THROATED DIVER, 
C. septentrionalis. 
I have seen a Black-throated Diver, a 
stuffed specimen, believed to have been 
killed on the Wye, near Glasbury. An 
adult Cock in immature plumage but be- 
ginning to assume the black spots on the 
back was killed on Llangorse Lake on 
27th February, 1892, by Lieut. Armitage, 
and examined by me. He told me there 
were a pair there, the other bird being 
smaller, but he failed to get it. Captain 
Hotchkis also secured a Red-Throated 
Diver on the borders of Radnorshire 
some few years since. It is very pro- 
bable that occasional birds of both kinds 
very rarely visit us from time to time, 
but escape notice, and so are unobserved 
and unreported. 
GREAT CRESTED GREBE, 
Podiceps cristatus. 
A special haunt of this bird is Llan- 
gorse Lake, where at one time it must 
have been quite plentiful. It is fairly 
