problem : feral cat yowlers @ 0300

solution complications:

- sleep with door open (screen door barrier) = can't close door
- semi-suburban area (woods across the roadway, vacant lots around) = no gunfire
- no yard fencing = no dogs
- no killing
- have own cats = no poisons and as above, no killings
- 0300 ? = don't want to spend a lot of sleep time waking up and hunting, or lying in wait

possibilities:
- traps?
- deterrents ? have used Shake Away Shake Away for skunks, possums under the porch with great success
- pellet guns ? remember, no killing and don't want to spend a lot of money
- let nature run its course?

:: there are coyotes in the area and am quite surprised that with the amount of racket these ferals are making that the coyotes haven't solved my problem for me.

what have you had luck with ?

what am i overlooking ?