Its been 18 months at my new place and I still don't have chickens. I just can't decide on getting a portable (Tractor) style coop or a permanent one. Live in an area with coyotes, hawks, loose dogs etc...and I'm afraid a portable will not be safe enough. Or are they safe enough? Also worried about the grass & landscaped areas b/c I want them to free range. My husband is NOT crazy about the idea of getting chickens. Any advise?