150 EQUIPPING THE POULTRY HOUSE 



The following points should be considered in the design and 

 construction of a trap nest. It should be large and roomy, and 

 of considerable depth, so that the egg will not be 'rampled upon 

 while the hen is waiting to be removed. About twelve inches wide, 

 eighteen to twenty inches deep, and fourteen inches high is a very 

 efficient size. The trap arrangement should be so delicate that 

 the bird cannot enter without causing the door to lock automatic- 

 ally and keep her from leaving the nest and prevent another hen 



Fig. 100. — The Cornell trap nest. Whea entering, the hen steps on the wooden cleat 

 which closes the door behind her. A latch at the top holds it closed. The fourth nest shows 

 attendant removing the hen. (Courtesy J. E. Rice.) 



from entering. It must be so constructed that only one bird can 

 enter the nest at one time. The trap arrangement should be so 

 located that it will remain free from obstruction, such as nesting 

 material, which would hinder its proper working. Simplicity in 

 the manner of trapping is to be desired; the fewer working parts 

 the better, as they are less liable to get out of order. Figures 98, 

 99, and 100 show some efficient types of trap nests. 



Broody Coops. — Every pen should be provided with an avail- 

 able coop for the isolation of broody hens (Fig. 97). A very de» 



