"Das Hühnchen hat Eier."
So what's the point of saying Huehnchen as opposed to Haehnchen if the answer is the same anyway? I almost said "chick," decided to go with typing "little chicken," and then found out "chicken" was the only acceptable answer anyway.
Okay, I was just told by my native German friend that Hühnchen is a female chicken whereas Hähnchen is a male chicken. Thus it would be a female chicken that would lay the eggs, ie. Hühnchen. I get it now, but the definition wasn't clear on that (at least not as of yet).
I was also told that der Hahn is actually what you would call a male chicken (and das Huhn a female chicken) as well - Hähnchen fits food, but nobody would point at a rooster and say it with -chen (kids aside). It's nice to have German friends to point these things out to ya!