One meaning of "caccia" listed here is that of an Italian musical and poetic form. But instead of leading to an article explaining that form, it redirects to canon (music), presumably because caccias, when musical works, are usually canons. That doesn't make sense first because caccias in music are not always canons, second because (as this page already attests) caccias are sometimes poems, and third because even when they are canons, they are a distinctive body of literature within the larger tradition of the canon, and the canon page makes no mention of that body of literature.