I give mine everything you mentioned. But not raw potatoes only cooked. Cabbage seems to be a favorite too. Also, I've been doing a lot of weeding lately and they seem to like all the dandelion greens that I've been removing. Less weeds and free chix feed.
There is a Dos/Don't list on this site, I'll grab the link and throw it in. Almost all vegtables except potatoes and most fruits but not citrus. A lot of people do feed citrus but I avoid it because it is on the list.
Common Foods and Plants Toxic to Chickens
raw potatoes and peels
avocado
citrus fruits
rhubarb leaves
chocolate/caffeine
apple seeds
onions
garlic
mushrooms
alcohol
potato, eggplant, and tomato plants/leaves
salt
mistletoe or holly berries
raw beans
nutmeg
sweet pea plant
tobacco
stone fruit pits
asparagus
My kids threw some avocado (with peels) into the cage tonight. They pretty much left the skins alone, but parts of the skins are gone. Is this something I need to worry about? (and we scolded the kids about putting food in their cage without clearing it with us, BTW- they are just so excited to feed the chickens)
OK, now I'm really concerned that I might have just poisoned my chickens. I'm going to talk to the kiddos more about this tomorrow.