Not sure that makes sense. A snake can be anywhere, any can’t necessarily be clearly seen until you step on it or whatever. Years back an uncle found one coiled up in his watering can.
I stepped into the carport and a copperhead was overhead, in the rafters. Its head & upper body zinged out & hissed at me, right at eye level.
Would have been bitten in the face, except I moonwalked like Michael Jackson just in time.