Instructables

Rat bait station

Picture of Rat bait station
If you live in the country near a river or forest you will probably have rats nearby. When the weather turns cold they want to come inside your house or barn where it is cosy.
There are a lot of Instructables for trapping rodents but if you have more than one or two, trapping is really not a satisfactory option. This bait station is easily made from two plastic milk bottles and keeps the bait away from pets and birds.
 
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Step 1: Tools

Picture of Tools
Common tools needed are a hammer, needle nose pliers, box cutter, and utility scissors.
Several sizes of nails and heavy staples are also used.

Step 2: Materials

Two one liter or quart plastic milk containers, a heavy block of wood a little longer than the milk containers.

First:
Cut the end off of both milk bottles and remove caps. The rats can enter through the top or bottom.
Cut a square hole in one, leaving about 25mm (1 inch) at the bottom end. Remove the cap. This will be the bottom.

Step 3: Attach container to the wood.

Picture of Attach container to the wood.
Using a pair of needle nose pliers to hold the staple in place, hammer it through the bottle into the block of wood. Use three or four staples to ensure the bottle stays attached. The block of wood keeps the rats from taking the bait and hording it. The objective is to kill the rats, not give them a storehouse of bait.

Step 4: The top

Cut the handle end off the other container, try to leave it as long as possible. Cut a strip off one length but leave "wings" to hold the top onto the bottom.

Step 5: Baits

Picture of Baits
These are three of the brands of bait available in New Zealand. It's a good idea to give them more than one kind so they don't develop immunity to one or if they're picky eaters.
mowdish3 years ago
How does this keep the birds out? The picture in step 7 looks like a nice bird sized hole.
ClareBS (author)  mowdish3 years ago
They could get in but small flying birds don't seem to be interested in the bait on the ground. We have one species of large flightless birds (wekas) and another large bird species that doesn't like to fly (pukekos). The dozens of those birds we see every day have never gone up to the bait stations we can see from our house. The bait stations are moved around a bit during the night indicating it is the rats which are dining from them. The opening in the back could be made smaller, rats don't need much room to get into a space.
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