My input, as a true representative of your target demographic (as well as a graphic designer/ad designer):
Even if poultry doesn't use antibiotics, as Terrie Lacey said, I'd put it on there anyway. Not everyone knows that, but your target market DOES know that they don't want antibiotics in their meats.
Also, if your birds really are certified ORGANIC, I would put that PROMINENTLY at the top. In my state, the grocery stores all sell their version of "all natural" meat & chicken. It is no-hormone, no-antibiotic, no chemical, no additive, etc. But it is NOT ORGANIC, not is it FREE RANGE or CAGE-FREE. You can buy those, but they are harder to find and a lot costlier. When I see organic and free-range/cage-free, I'm always willing to pay a little more for it. So, if you can legitimately make those claims, I would make them pretty prominent. Maybe at the top it should say, "Humanely-Raised Organic Cage-Free Chicken"...?
Otherwise, I like it. It has a nice family-style feel to it that is appealing. Check how the printer outputs it that you plan to use... you might need to clean up the "Happy CHicken" logo a little for clarity if its a fairly low-definition printer. Just add a little space between the lettering maybe.
My 2 cents...
Stacey