Everytime it try to get them to breed, it tells me they are too hungrey to think about that. I take them to the food and they eat, but it still says that. What am I doing wrong?

get a good store of food before you try to breed them...at least 200-300. If you try to grow your village to fast, they will starve. Also, I would recommend having the second level farming before trying to grow your village. The berries just cannot sustain that many people.

You need a fairly large amount of stored food to stop them worrying. Depending on your village's size, 300 or more should be required.

400 is about average to get the to stop complaining