My orpington hen will be 1yr old this April and is laying. She started this "talking broody" for 2 days now. Since this has started, my rooster keeps chasing her and she keeps running from him, getting up out of reach until he goes away, then jumps down and forages while clucking until he chases her down again.That is what I refer to as "Talking Broody." Some hens will start doing that anywhere between a few days to a few months before going broody. Some hens will do that and never go broody at all, just "talk" about going broody. It's a normal behavior and once you know the time frame of your hen talking broody, you might be able to know when to get a collection of their eggs to hatch.
There is a time when talking broody is a bad thing and has nothing to do with broodiness. This is when the hen is either being broody, or has an issue with the rooster. The hen will start talking broody to protect themselves against whoever they're afraid of. In your hen's case, it sounds like she's planning on going broody, but I'm sharing this information just in case there is a bullying issue either by other hens or a rooster, or you see it start happening in about hen that isn't going broody.
Is this a broody thing, or sound more like the rooster is picking on her for some reason unbeknownst to me? If the latter, in what situation, or for what reason does a rooster start picking on one of his hens?