338 BRITISH BIRDS. 



chesnut; the sides, and the feathers which cover 

 the thighs, are also of that colour, but of a duller 

 cast, and the belly the same, but much mottled and 

 broken with white; the tail, rump, and upper tail 

 coverts black; the under pure white, which forms a 

 strong contrast with the black, which drops down 

 before the vent feathers towards the thighs; the 

 upper plumage is dusky brown; a collar of the 

 same colour surrounds the middle of the neck, and 

 passing behind, becomes uniform with the colour 

 of the shoulders and the back; the secondary quills 

 are black at the tips, and white at the base, 

 and form the speculum or oblique bar across the 

 closed wing; the quills are short, reaching only to 

 the rump, near the root of the tail; the legs are 

 dusky. 



