There's a special kind of dread that comes with a purple comb. It's not like a sneeze or a limp where you can convince yourself it's nothing. A purple comb is the chicken equivalent of a check-engine light that's been blinking for three days, and Octavia's mama is right to be worried. The slow creep from "slightly purple" on Friday to "much darker" by Monday is the part that gets us. That's not a mood swing, that's a trend, and trends like that don't fix themselves with extra mealworms.
We love that she's still eating and moving around, because that's the part that gives you hope, but let's be honest: a hen that's been off lay for weeks and is now sluggish with a darkening comb is telling you something with her body, even if she's too polite to cluck it out loud. The internet's guess of "circulation issues" isn't wrong, but it's about as helpful as saying "it's probably weather-related." What matters is that Octavia isn't happy, and in our experience, unhappy hens don't just bounce back because you wish really hard. They need action.
Here's the practical part, and we're not going to sugarcoat it: no vet nearby that specializes in poultry means you're the first line of defense. That's scary, but it's also doable. Start with the basics that don't require a degree: check her for mites or lice, feel her abdomen for any hard or swollen spots, and give her vent a gentle once-over even if she "seems fine" there. The fact that her crop is fine is a small win, but it doesn't cancel out the purple. If she were ours, we'd separate her from the flock tonight, put her somewhere warm and quiet with easy access to water and a little electrolyte mix, and we'd be on the phone tomorrow morning calling every vet within an hour's drive, even the ones who mostly see cats. One of them will know someone who knows someone. That's how this works.
What we'd tell a reader who asked us directly is this: don't wait for her to get worse. Purple comb can mean anything from a mild respiratory issue to something more serious like reproductive problems or even heart trouble, and none of those get better with time alone. You're not being dramatic, and you're not overreacting. You're being a good chicken parent, and that means trusting that little voice in your gut that says "this isn't right." Octavia is lucky to have you, but lucky doesn't replace a vet visit. Make the calls, check her over one more time tonight, and if she's still purple tomorrow morning, that's your answer. Keep her comfy, keep her close, and don't let anyone make you feel silly for caring this much about a bird who might not even appreciate the effort. She does, even if she's too busy being grumpy to show it.