How to feed/howmuch to feed

Hey all,

Ive not recently got my three birds, two light sussex and a rhod island red at 12 weeks old.

Ive got them on growers pellets at the moment, but im just wondering how to feed them/how much?

At present ive got them a feeding hopper that i keep filled up all the time so they can eat as much as they want.  Is this sensible?

Obviously means i cant tame them as well because they always have food so never need to come to be fed as the big yellow thing does it all for them!?

Am I better to put the food in for them in the morning, if so how much should I feed them?

Also at this age is it wise to avoid feeding them treats or greens and such - i herd it can cause problems with infected crops in younger birds?

Lew

chickens are grazers and will eat a little and often so please continue as you are. Offer them a couple of mealworms each in an open palm and they will soon think you are their best friend 

Yep, if mine see me digging the garden they line up for tasty worms or weeds.  Even when i carry the poo plant pot i use for cleaning, they run over incase it's something for them and they know it's not!