[Case 28. ] 
52 BIRD GALLERY. 
Of the Arenariine, the Turnstone (Arenaria interpres) (622), one of 
the commonest of our shore birds, is almost cosmopolitan in its range, 
nesting in the Arctic regions of both Hemispheres and ranging south 
almost as far as land extends. It gains its trivial name of ‘Turnstone” 
from its habit of turning over stones to secure the small crustacea hiding 
beneath them. 
The Oyster-catchers or “ Sea-Pies” (Hematopodine) (628-525), which 
have the legs reticulated both in front and behind, derive their name 
from their supposed habit of feeding on oysters. They live, however, 
chiefly on mussels, whelks, and other shellfish, which are scooped from 
their shells by the bird’s powerful bill. The common Oyster-catcher 
(Hematopus ostralegus) (625) is a familiar British species, breeding on 
the shores and sandy beds of rivers, and depositing its eggs in a slight 
depression in the ground. As will be seen from the specimen of 
H. unicolor (§28) in the Case, some species are entirely black. 
Passing over the Peltohyatine, which includes only the Australian 
Dotterel (Peltohyas australis) (5838), we come to the True Plovers 
(Charadriine) which include a number of well-known forms, many of 
which are found on the List of British Birds. 
Commencing on the right-hand side of the fifth shelf we find the very 
singular Wry-billed Plover (Anarhynchus frontalis) (632) of New 
Zealand, which has the bill twisted towards the right, an adaptation 
which enables the bird to pick up insects hiding under stones. 
The Ringed (527) and Kentish (529) Plovers | Pl. VIII.], Dotterel 
(535), Golden Plover (546), and Lapwing (544), are all well-known 
British birds and breed in our islands ; the Little Ringed (528) and Grey 
Plovers (541) are regular visitors on migration, and the Killdeer (534), 
Caspian (537), and American Golden (547) Plovers are occasional 
stragglers to our shores. The Dotterel (Hudromias morinellus) (585), 
one of the most beautiful of the Plovers, was at one time a toler- 
ably common British bird, but its numbers have greatly decreased 
of recent years. The Grey Plover (Squaturola helvetica) (541) and 
the Golden Plover (Charadrius pluvialis) (546) are conspicuous for the 
marked changes of plumage during the summer and winter months, The 
Lapwing, Peewit, or Green Plover (Vanellus vanellus) (644) is perhaps 
the best known bird of the group on account of its eggs being so highly 
prized as table-delicacies. The young of this species (545) exhibited in 
the Case show the protective nature of the colour in the nestling down. 
A number of the Plovers have the sides of the face in front of the 
eye ornamented by brightly coloured wattles, which hang down on each 
side of the bill, and some have a strong spur situated at the bend of the 
wing and used as a formidable weapon of offence. As an example of 
those with facial wattles only, we may draw attention to the Crested- 
