120 PRINCIPLES OF POULTRY-HOUSE CONSTRUCTION 



Windows and Curtains. \yindow and curtain openings in the 

 poultry house are valuable, in that they admit sunlight and fresh air t _ 

 cleansing the house, and making it a congenial place lor ihe birds/ 

 They should, be sojtrranged that they can be opened quickly and 

 easily, and the 'danger* of breakage thus reduced to a minimum. 



20' 



Too narrow tnd too lovr 



FIG. 76. Three plans for placing openings in front wall of poultry houses. 



Sunlight is necessary^jo th fowls, but top much_glass makes 

 th^house cold at nightandtoo warm in the daytime. An excessive 

 amount of glass makes the house too expensive. A good rule for. 

 large houses using muslin openings is to allow one square foot of 



