Tufted Duck 
63 
of animal culae, small water-beetles, larvae of gnats, &c., all of which form natural food." 
All who wish to rear any of the young of surface-feeding or diving ducks, or keep them 
in good health, will do well to procure Mr. Wormald's excellent little book, as it is 
thoroughly practical and sound in all its details. 
A great number of hybrids between this species and other ducks have been recorded. 
Suchetet alone {Oiseaux hybrides renconMs h I'dtat Sauvage) records many. The cross 
with the Common Pochard seems to be the most common. I possess two examples of 
this and have seen over a dozen others. The hybrid with the Ferruginous Duck also 
is not rare, and the two species will cross freely in confinement. Other species with which 
the Tufted Duck has crossed are Aix sponsa, Nyroca marila, Querquedula crecca, and 
there have been numerous hybrids inter se. 
