Hi,
I went to my local feed store and asked about Kelp. They knew what it was and said that people usually use it for horses. He didn't have any on hand, but said he could order it.
It only came in a 50 pound bag and would cost $70.00. Pretty pricey. I also asked him to price flax seed. Again 50 pound bag for $30.00
I have decided, since I haven't gotten much of a response here is to talk to the family from church again. Find out more details and where they get their supply also.
I am still considering it as an option for just the winter. I only have 9 hens and I think it would last quite awhile.
Steph