26 PTEROCLID#—-TETRAONIDE 
214, CotumBaA nas, Linn. Stock-Dove. 
Resident, common and nesting ; there has been a large increase since 
1870. Breeds plentifully in the Flamborough cliffs. In 1884 visited 
clover fields in the winter in Great Cotes marshes in flocks of 400 to 500. 
These were probably immigrants, as the district could not supply them. 
215. CotumpBa Livia, Gmel. Rock-Dove. 
The only locality are the Flamborough cliffs, where they breed in 
some number in the sea-caves. Frequently succumb to heavy storms 
and cold weather in the winter. 
216. TurtTuR communis, Selby. Turtle Dove. 
Since 1870 have become quite common in North Lincolnshire and 
Holderness in the summer. Arrive first week in May. The earliest 
date I have is on April 17th, 1896, Flamborough. Leave in September. 
On January 23rd, 1899, a pair of wild turtle doves came into the garden 
at Great Cotes and remained for some hours and then left. I strongly 
suspect these were the eastern 7’. orientalis, Latham. 
217. TURTUR ORIENTALIS, Latham. Hastern Turtle Dove. 
One presented to the York Museum by Mr. Backhouse was shot at 
White Nab, near Scarborough, October 23rd, 1889 [‘ Nat.,’ 1890, p. ee 
It is a bird of the year. 
Order PTEROCLETES. Family PTEROCLIDA. 
218. SyRRHAPTES PARADOXUS (Pall.). Pallas’s Sand-Grouse. 
There have been two great invasions of this Asiatic species, in 1863 
and 1888, much the greatest number arriving on the coast in the latter 
year |‘ Zool.,’ 1888, p. 419-23]. In February, 1889, a flock of about one 
hundred frequented the sand hills at Summercotes on the Lincolnshire 
coast. In the summer of this same year the birds attempted to nest on 
the Yorkshire Wolds, and two clutches of eggs were taken by Mr. 
Swailes, of Beverley. Irom the last week of January, 1899, to the end 
of March a flock of about thirty frequented an old haunt on the Lincoln- 
shire wolds [‘* The Tvimes”’ in litt., March 29, 1899 (Cordeaux) |. 
Order GALLINA. Family TETRAONIDA. 
219. TeTRAO TETRIX, Linn. Black Grouse. 
Probably not indigenous, but introduced on the heaths and commons 
in North-west Lincolnshire. In September, 1885, out of a brood of eleven 
on Scotton common all were shot. In 1888, also in 1891, hybrids between 
the cock-pheasant and grey hen were got on Brumby common and at 
Twigmoor. The latter, which is is in the collection of Major Sutton- 
Nelthorpe, at Scawby, is a very beautiful bird. 
220. Lacopus scoricus (Lath.). Red Grouse. 
Resident and common on the moors near Scarborough. 
