THE ROLLER CANARY 21 
There are some fanciers who never leave a cock with 
a hen after she has gone to nest. They are wise when 
he is run with more than one, but when one cock to one 
hen is the rule, we like to leave them together all the 
time, unless it should happen the cock interferes with 
the hen during incubation, or will not do his bit in feed- 
ing the youngsters when they come. 
MODERN FEEDING METHODS 
That last sentence leads us to the thought that the 
youngsters will need feeding, but before we talk about 
their food we will say something about that of the old 
birds. 
For a month before they are mated the old birds 
should be given some egg food, or one of the proprietary 
prepared substitutes for it every other day, in addition 
to the daily seed which should consist of summer rape 
given as the staple food in the seed hopper and a mixture 
of canary, inga, and maw seed in the seed drawer or 
tin. 'Green food should be given every day. 
In these latter days cod liver oil food has been largely 
used by fanciers. Cod liver oil food is like whisky—it 
needs to be used with discretion. It should never be 
fed regularly every day, except to bring very backward 
birds into condition for the breeding season, or to sickly 
birds. In such cases it may be used every day, also for 
a day or two before and after birds come back from a 
contest. It may be given to the birds twice a week when 
they are newly paired, and three times a week during 
the breeding season, or every day if given mixed in equal 
proportions with the ordinary canary food. During the 
moulting season it may also be used as during the 
