that's because it's your feed bucket, not treats :D Try it with e.g. mealworms - and a different call, if you still want to train them to come on command
'chickens come home to roost' is a phrase based on their natural behaviour. Some, however, do prefer to roost in trees than a coop, but they will head back there at dusk.
If you want to train them to get them in earlier than they would choose, use treats. Very simple: regular pattern, making a...