I have been keeping my brain well exercised by ruminating on the same issue. We just put our 8-9 week old chicks out last week. I know we have rats around the back yard. We have no food source out for them, but these are roof rats so they primarily feed on 'native' fruit and nuts. One of our big backyard trees (which I would never get rid of) puts out some apparently tasty nuts/seeds for a few months in the spring and rats have taken a fancy to it as a food source, not to mention the neighbors 3 apple trees that don't get picked, and the fruits that fall don't get picked up. All that to say, I CANNOT possibly remove the food source for these rats.
I have been out at night for at least 30 minutes each night watching for rats. And each morning I walk around the coop and check the roof and the gravel on the ground for signs of digging and for rat scat. I know that it isn't a big infestation as I only see one every 2 or 3 nights, I have only seen more than 1 on one occasion, and there is almost no poop and no sign of gnawing/scratching around my property. I do have a hedge in back that provides good cover for them that will be removed as soon as I can afford a fence in it's place (probably this summer). But other than that my choices for control are limited to trapping and poison. To be clear, these rats were in the area at least 6 months prior to us getting chickens, so the chickens are not what is drawing them in, though I know it is only going to make the area more enticing to future rodents.
I am trying to decide if I will go so far as to try trapping and/or poison if the 'problem' stays as it is, which isn't much of a problem now.
BUT once the chickens presence is well-established in my backyard, and they are eating more and creating more 'pleasant smells' in the mind of a rat, will the rats just give up on the chickens/chicken feed when they realize they can't access it, or will they chew through 3/4" plywood to get a taste?
If I leave a feeder in the hen house that the rats cannot access will it still make the rats more likely to 'hang around' the coop looking for a way in because of the smell?
Will taking the feeder out at night really make a difference, since the hens will certainly have 'billed out' much of the food so the smell will still be there?
Taking all of that into consideration, my primary consideration is to limit any food on the ground in the run. The options I am considering follow:
- By making them go into the hen house for all their food
- By ration feeding only (theoretically there would be no food left at the end of the day)
- By removing the feeder from the hen house during the day, throwing down a little food/scratch in the run for daytime fun - and since there will be no food in the hen house during the day, I assume all that I throw down in the run will be eaten - and then putting the feeder back into the house at night.
Alternatively, I thought of having a feeder out in the run during the day, but it would have to be a feeder of the type that the OP is looking for. Something that would prevent billing out of food (because I don't want any on the ground the run) and it would have to be able to seal up well at night...to keep out mice (1/2" hardware cloth, mice can theoretically get in) and to limit food smell.
I will be keeping an eye on this thread...thanks to the OP for starting it!