ISOLATION OF NON-LAYERS 



173 



or lack of exercise. Of course it is understood 

 that hens normally have a longer or shorter pe- 

 riod of rest between egg-laying seasons. 



Trap Nest That Stays in Order 



The Storrs Station (Connecticut) describes the 

 trap nest, illustrated by the accompanying draw- 

 ing, as "one that stays in order." 



The upper figure in perspective shows five nests 

 arranged side by side. By making the nests in 

 a series considerable lumber is saved. Swinging 



Fig. 54 



doors (D) are fastened to a rod running the en- 

 tire length of the box. Stops (F) prevent the 

 doors from swinging outward. L is a lever 

 pivoted to the partition (P) so that one arm is 

 about five times as long as the other. The lower 

 cross-section sketches show how the lever and 

 door are arranged. 



To enter the nest the hen flies onto the walk 

 (W) and crowds under the door (D) which is 

 partly open. In so doing, she lifts the door 

 slightly, and the long end of the lever (L) falls, 

 being heavier than the short end. The door 



