something gets in the pen in the middle of the night.

[kconners]

It killed my pair of guineas. It destroyed the eggs, eat my 3 months old chicks and 6 months old chicks and ducklings.
I have metal pegs, tent stakes, pinning chicken wire to the ground. Nothing pulled any out. Found a tiny 2 inch hole dug under wire, I put more pegs.
I set up traps, bait with Bologna. It stolen the Bologna. I made bait pockets from old chicken wire. Again stolen Bologna. The small trap sprung and big trap not Triped but you guessed it. STOLEN BOLOGNA Ugh what can it be here in northern Florida

 

[FalconsNest]

wow sounds like you have a situation.
I'm sorry you must be pretty frustrated. the only predater I know of who is able to squeeze through a 2 inch space would be a weasle, but I never heard of one who eats like that... Weasles eat only choice parts of a bird, I thought. Getting something like NiteGuard or a motion-sensing cam to post beside the pen at night should help.

 

[kconners]

I have the same traps every night I set the traps it chewed the nylon twine holding the bate pocket closed and steels the Bologna.
my chickens are on the roof instead of in the pen.

 

[Rock Home Isle]

I have the same traps every night I set the traps it chewed the nylon twine holding the bate pocket closed and steels the Bologna.
my chickens are on the roof instead of in the pen.

You may have to tune your trap. Getting the trap is only half the process, cage traps need to tuned just like any other trap on the market. Once you learn how to properly bed the trap and stake it...you'll be fine.

Make sure that the trap triggers properly, it should only take about 6 to 8 ounces of force to trigger the trap. You want the animal to enter the trap and as soon as it applies any force on the treadle, the trap should close.

If the trap is properly tuned, you can catch sparrows with these things.