126 British Birds, with their Nests and Eggs. 



ORDER PYGOPODES. 



THE Order Pygopodes was established for a group of birds consisting of tbe 

 Auks (AlcidaJ, the Divers fColymbida) , and tbe Grebes (Podicipedidce) . In 

 these birds the power of diving and remaining under water is largely developed, 

 and although, according to some authorities, their arrangement in one group (to 

 the exclusion of some other families) is not warranted by their respective structures, 

 the Order thus made up is a convenient and, in many ways, a natural one. 



O. V. APLIN. 



