Worming chickens that are laying eggs so you do not have to discard the eggs is one of the questions asked very frequently here at Dark Eggs Daily. One of the best answers I can give is Pumpkins.
Yes your left over Halloween pumpkins, especially the seeds.
Our good friends over at The Backyard Chicken Coop wrote a very good article on using Pumpkins as a natural organic wormer for your chickens
http://www.thebackyardchickencoop.com/chickens-and-pumpkins-from-the-garden-after-halloween/
It is that time of year to grab all of the pumpkins you can find. Most of the roadside stands and markets will gladly let you load up on all of the left over Halloween pumpkins that are left.

