XIX. Observations on the Ornithology of 
Cambridgeshire. 
By tHe Rev. LEONARD JENYNS, M.A. F.L.S. 
AND FELLOW OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY. 
[Read Nov. 28, 1825.] 
In drawing up the following paper, it has been my object to 
collect a few particulars respecting the Ornithology of Cambridge- 
shire. A first attempt towards any undertaking of this nature must 
necessarily be very imperfect. From this circumstance I desire that 
the present may not be considered as a complete catalogue of the 
birds which are found in this county, especially as the greater 
part of the observations from which it has been chiefly compiled, 
have been confined to the neighbourhoods of Cambridge and 
Bottisham. With the view, however, of rendering it as extensive as 
possible, and in some measure of supplying the deficiency arising 
from this cause, I have added from our English authors what- 
ever notices I could find in their works relating to species which 
though formerly met with in this district have not lately occurred 
to my knowledge. There is the greater interest attached to these, 
as there is reason to believe that many of them have become 
extremely rare, if not wholly extinct, in consequence of the strik- 
ing change which has of late years taken place in the face of 
this county from drainage and enclosure. I have also occasionally 
benefitted from the information of my friends. Such are the 
sources from whence I have drawn my materials. Under many 
