378 



BEGINNINGS IN ANIMAL HUSBANDRY 



warm air is supplied. On large poultry farms, the brooder 

 house may be of considerable size, containing a series of pens, 



in the end of each of which is a 

 hover, warm air being supplied 

 by a hot water heating plant 

 located in one end of the build- 

 ing. Brooder houses should be 

 well lighted, warm and dry, and 

 rat proof. 



The colony house is a small, 

 single-room building containing 

 roosts and nests, and located in 



Fig. 209.. A portable colony a y ard Or ^d. It IS simple 



and cheap of construction, and 

 is usually portable, so as to be 



easily moved from place to place. There is no one 

 style of house; and structures are made of all kinds of 

 material, ranging from piano boxes, at a total cost of 3 or 4 

 dollars, up to those made with care by a carpenter, costing 



Fig. 210. A cheap, open-front colony house. Photograph by courtesy the 

 Poultry Herald. 



