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MB. A. GRANT'S TRAP-NEST. 



The gliding-door works inside the trap-nest. The door-catch and trigger, A, B, C, 

 are made of one piece of strong steel fencing-wire, bent as shown. At D a strip of wood 

 1 in. wide is fixed to the wires. 



The hen entering the nest steps on the wood D, releasing the door. 



The sill should be covered with leather or felt. 



The trap is set by lifting the door. 



