Start of season, Feed in box corner to bond the with the box, They take to the box quicker, Then i start feeding on the floor in trough when they have all got a box and are fighting for it
You canlock them, Look underneath the bit on inside, there is a bit of metal (a bar) pull it out, push the trap all the way shut and slide the metal back in
IF I COULD ONLY RAE 1 SEX IT WOULD BE HENS, THEY GET INTO CONDITION/FORM QUICKER AND THEY RECOVER MUCH QUICKER THAN COCKS, BUT AS SAID ABOVE A COCK IN THE RIGHT CONDITION WILL BE UP THERE ;)