We have a Google Nest outdoor camera, somewhat out of sight, and it took the renter about 2-3 weeks before he noticed it. . . i wired the power from an outlet, and the camera is wireless and stores motion activated video in the cloud. .
Bought it at Home Depot / Lowes. . . i can't remember. . but only a couple of 100 bucks at the most. . . like $5 a month for cloud storage. . .
Have one at my moms house as well, captures great wildlife around the house, foxes, deer, bears, coyotes, skunks, o'possums. . . but missed the septic tank back hoe as it backed into the driveway and across the yard. . .