BIRDS. 49 
when immature birds are not unfrequent at Flamborough. 
Mr. A. Strickland informed Mr. Allis in 1844 that some 
few years before it used to breed in considerable numbers 
on the rocks off Flamborough Head. 
189. Sula bassana (Z.). Gannet. 
Periodical visitant, common off the coast, and especially at 
Flamborough, in the herring season. Has occurred as a 
straggler very far inland, but the examples so observed have 
been in immature plumage. 
Order 4. HERODII. 
Fam. ARDEIDZ. 
190. Ardea cinerea Z. Common Heron. 
Resident, local, but common. Yorkshire hefonries have 
greatly decreased in number. ‘Those now in existence are 
at Kildale-in-Cleveland, Newton Hall near Malton, Hare- 
wood Park near Leeds, Eshton Hall near Gargrave, and 
Browsholme Hall near Clitheroe. It nests singly and 
irregularly in many parts of the county. 
It is not uncommon on the coast in the autumn, when 
immigrants arrive from the continent, and throughout the 
winter. 
191. Ardea purpurea Z. Purple Heron. 
Accidental visitant from Southern Europe and Africa, of very 
rare occurrence. 
Flamborough, young bird shot in 1833 (Allis). 
Lowthorpe, near Driffield, one, spring of 1847 (Morris, Zool., 
1849, p. 2591). 
Temple Thorp, near Leeds, male, May 24, 1850 (Morris, B. 
Birds, 1855, iv. 108). 
Ruswarp, near Whitby, one, mature, shot, summer of 1850, 
in the Whitby Museum (Stephenson, MS.). 
Hornsea Mere, one, July, 1863, in the collection of Sir H. 
S. Boynton (T. Boynton, MS.). 
E 
