I have a small flock of Guinea hens. (actually I have boys) They not only keep my area tick free but have substantially reduced the fly population by going through the manure!
They won’t give you eggs, but they can fly short distances so I have lost very few to the local Coyote population unless the birds have gotten old. My current birds are 8 years old and still lively.
I haven’t found but one tick on any of my four dogs this year. I haven’t found a single one on any of the 30 horses on the place!
I swear by them!