Yes
However, here is something you may want to consider. Foods with strong flavors such as leeks, onions, garlic, and so on may actually have an effect on the taste of the eggs they produce. If you are keeping the chickens for laying purposes, this might not be something you desire.
No They will not kill a chicken but they likely will not eat leeks. Leeks are part of the onion family of plants and unless the leeks are very young and just breaking the surface of the soil, a chicken will most likey ignore it.
Horses do not like to eat leeks
Leeks :)
Foxes do eat chickens, given the chance.Yes
Chickens eat grians,some wheats and corn.
yes, chickens can eat brownies
No, but they do eat forms of grass. Leeks and asparagus are in the grass family.
No more than if you eat onions or potatoes.
If taking warfarin, you should avoid vegetables which are rich in vitamin K, such as leeks, spinach, broccoli and peas.
Chickens eat grit to help with their digestion.
Yes, raccoons do eat chickens.
Yes, chickens can eat grapes! Some chickens love them! Chickens will eat most fruit. Grapes are one of their favourite treats in the fall of the year.