518 



POULTBY CULTURE 



durable. It is estimated that there should be one nest for 

 each four hens. 



Figure 210 gives a sectional view of Fig. 212, the trap-nests 

 that are in use at the North CaroHna Experiment Station. It 



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Fig. 210. — Side sectional view of a trap-nest. 



is 12 inches wide, 18 inches long, and 12 inches high, inside 

 measurements. The top is made of chicken netting, so that it 

 is not too hot in the summer time, ensuring plenty of ventila- 



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Fig. 211. — The trigger for the trap-nest. 



tion. The compartment the nest is located in is 11^-^ inches 

 long. In front of this is a 3-inch strip which holds the nest 

 material in. The front piece is a 4-inch strip, which leaves 



