I don't know if these are the maxima? https://www.strombergschickens.com/...-Honker-Gosling/Wild-Canadian-Honker-GoslingsI heard there is a maxima strain where the Canadas can weigh 18-22lbs but I don't know of anyone who breeds them. I would like to get a hold of some of those. Most of the ones you see here in Iowa are 9-14lbs. It is hard to find true maxima giants. The Canada geese have such a wide genetic pool as far as sub family species go. It is hard to even tell them apart. I've heard of cacklers, eastern and maximas but was told there are more like 10 or 12 kind of Canadians.