300 
Sp. 48. 
Spe. 49. 
Mr. Jenyns on the Ornithology of Cambridgeshire. 
Genus XIII. ACCENTOR. Bechst. 
A. alpinus, Temm. Man. d’Ornith. p. 248. 
ALPINE ACCENTOR.—The discovery of this addition to the Orni- 
thology of Great Britain is due to Dr. Thackeray, who observed 
a pair of these birds in the open space immediately under the east 
window of King’s College chapel, on the twenty-third of November, 
1822: one of them, which proved to be a female, was shot, and is at 
present in his collection. I am not aware that any others have 
since been mét with in this country, where indeed it can only be 
looked upon as an accidental visitant. According to Temminck 
its native haunts are the Swiss Alps and the mountainous parts of 
Germany and France. 
A. modularis, Temm. Man. d’Ornith. p. 249. 
Hepcr-Accentor.—One of the few soft-billed birds that remain 
with us the whole year, singing at all seasons if the weather be 
mild. 
Genus XIV. MOTACILLA. Linn. 
M. alba, Temm. Man. d’Ornith. p. 255. 
Prep Wacraiu.—I had often observed that we see greater num- 
bers of these birds in the autumn than in any other season of the 
year, but was not aware of the cause till I learnt from Selby’s 
Illustrations of British Ornithology, that in the north of England 
this species is a regular migrant, retiring southward in October, 
and not re-appearing till February or the beginning of March. 
This circumstance renders it highly probable that at the time 
above-mentioned the birds of our own neighbourhood are joined 
by those which arrive from the higher parts of the country. 
M. Boarula, Temm. Man. @Ornith. p. 257. 
Grey Wacramt.— This is the least plentiful of the three 
British species of Wagtail, and is only seen in Cambridgeshire 
during the autumnal and winter months, appearing first in October 
or earlier. In the spring it retires northward to breed. About 
Bottisham I have noticed it most frequently in January. 
