I have this hen that has an odd growth a little bit below her vent. I first noticed this two years ago and made a post, but the post didn't get much traction. I watched it and nothing changed and nothing has changed still. She has acted completely healthy and normal. She is having a pretty heavy molt this year so the growth is very visible, which again has me asking the question of what is it? It doesn't seem to have changed in size; at least nothing noticeable. It's not super soft, but it's not super hard either. It's relatively firm but there is a fair amount of give, if that makes sense. Even though I've known about this for 2 years I'm still wondering what it may be? Any ideas?