46 
GUIDE TO THE 
Among tlie Rails or Rallidae we find onr well- 
known Coot {Fulica atra)^ an albino of the Moorhen 
{Gallinula chloropus)^ Land-Rail {Crex crex or 
prateiisis)^ the Water-Rail {Rallus aquaticui) and a 
perfect albino of the latter, the tiny Little Crakes and 
Spotted Crake, as well as some exotic forms. The 
rarest of these is the now extinct Sandwich Island 
Rail {Pennida ecaudata in Cat. B. XXIII. p. 114), and 
the little Laysan Rail {Porzanula palmer which has 
been discovered on the little island of Laysan in the 
North Pacific Ocean by Mr. Rothschild’s collector 
Henry Palmer. 
Among the Divers we find our British species, as 
also among the Grebes, of which the Great Crested 
Grebe {Podiceps crhtatui) breeds frequently on Tring 
Reservoirs. 
The following case acquaints us with the 
Swans, Geese, and Ducks. 
Among the Ducks we find some hybrids, and an adult 
male as well as a young male of the extinct Labrador 
Duck {Camptolaimus lahradoricus) of North America, 
a bird which is, like most other extinct birds, much 
rarer in collections and less known than the Great 
Auk, about which so much has been written and for 
which such high prices have been paid in England. 
A specimen of this Great Auk (^Alca impen7iis) is to 
be seen in the following case, the last of the bird 
