BRITISH BIRDS. 
147 
TIPPET GREBE. 
GREATER DOBCHICK, OR GREATER LOON, 
{Colymhus unnator^ Lin, — La Grehcy BufF.) 
Ttiis bird difFers from the laid only in being 
fomewhat lefs, in having its neck, in moft fpeci- 
mens, ftriped downward on the fides with narrow 
lines of duiky and white, and in having no creft. 
Modern ornithologids begin to fufped, that the . 
Tippet Grebe is the female of the Great-crefled 
Grebe, or a young bird of that fpecies. Latham 
fays, It is v/ith fome reluctance that we pen our 
doubts concerning the identity of this, as a fpecies, 
at lead as being diftinct from the Great-crefled 
Grebe, in contradiction to what former authors' 
have recorded on the fubjeCt. It is certain that the 
lafl-named bird varies exceedingly at different pe- 
T 2 
