28 DUCK DOLLARS 
When the weather in the spring begins to get warmer so that there 
is no danger of the eggs freezing, take out the windows entirely, so that 
the air will circulate freely from that time on, all through 
Open the the house, Nail laths or wire netting over the windows 
Windows to prevent the ducks from getting out at night, and also 
to prevent cats and other animals from getting in. You must manage the 
windows so that the eggs will not freeze. Be governed by the time of 
year and the weather. 
Care of Breeding Stock 
Ducks and drakes, which after the first year you save for breeding 
stock, should be handled as this chapter advises. If in winter, house 
them. 
Thirty head should be put in each pen: twenty-five ducks and five 
drakes. Allow ten square feet for each bird. That is to say, the thirty 
Interior of Brooder House 
This is the nursery for youngest ducklings. The pens are three feet wide. 
Cross boards are set half way in the pens, as pictured, so that the little ones will 
not wander far from the hover. The board tops of the hovers are seen. (The milk 
can is on top of one section.) The hot-water pipes are directly underneath the 
board tops. The pipes (bent) are for the purpose of carrying water from a central 
pressure supply, so as to save labor when filling the small drinking fountains used 
for the youngest birds. 
The timbering of the brooder house is well illustrated in this picture. As shown, 
the roof is double uneven, with the long side facing the sunny, or south side, and the 
narrow roof facing the north. A house of this construction is made any length, to 
suit the number of ducklings which it is desired to handle, 
