1) Alley frequenters 2) Alley lurkers 3) Alley prowlers 4) Alley yowlers 5) Animals in an alley 6) Back-fence yowlers 7) Certain felines 8) Garfield and morris 9) Garfield, et al 10) Male felines 11) Male mousers 12) Males that meow 13) Night prowlers 14) Some alley prowlers 15) Tabby searchers 1) Gibs