Does the purply-blue on the young hen ever change to a different color, or is that just the color of her skin, with some lightening or darkening according to her mood? The blue on the toms in that picture is totally voluntary -- those areas of the face can change from purple to royal blue to slate blue to salmon to fire engine red to light pink to white to a splattered mix of them all. It's quite remarkable -- nature's original mood ring. But it's only the carunculated skin that can do that -- the special thickened bumpy skin that essentially covers the entire head and neck of toms to the point that there is no normal skin, and is scattered as individual bumps with some normal skin in between over the head and neck of hens. So I think what you're seeing as purply-blue is actually going to become her normal skin color on her head, that she will have some ability to lighten or darken, and will develop little bumpy caruncles scattered about, but not so thickly that the normal skin is blocked out.
I have a Spanish Black hen with a slight neurological problem, making it difficult for her to control fine motor movements of her head, and her vision is impaired in dim light. She is otherwise totally normal, and in many ways everyone's favorite turkey. My family and friends would all disown me if I ever culled her, she is so affectionate and personable and happily goofy. When the turkeys were about 6 months old the other hens weren't very nice to her when she missed important social cues (teenagers are soooo mean), and poor Isabella sometimes needed to be rescued from the mean girls (so glad that stage is over). Usually the toms would flank her and protect her, but sometimes she just needed her people. Whenever she heard my husband or me approaching her or calling her name she would "put on her happy colors." It was so adorable. The skin on her head would change from the normal light pink to what I can only describe as the lightest purple plum imaginable -- almost white, but with an obvious plum hue. And her caruncles would turn this beautiful rosy salmon color. Not a typical orangish salmon, but a rose salmon. Those two unusual colors together were so distinctive, and whenever she wore her happy colors we knew she felt both happy and safe.
Now that the hens are adults, the normal color of the skin (on the head) on the bronze and one of the blacks is the same purply-blue that your little poult has, although it is sometimes pinkish and sometimes whitish pink. I would suspect that the Narris would have similar coloring.
If your little tom is tame he may not have been trying to scare your boyfriend away. Toms display for many reasons, and often it is a greeting to people. My toms display and gobble and rush towards me the moment they see me, and when they reach me I kneel down and they nuzzle up to me as I rub their heads and necks. And they're displaying the whole time. When they're young they display for everything. One of my boys started displaying while he was still wearing down, maybe 2 weeks old, and there were days when I didn't see him in a casual posture even once. But neither of them have ever once been aggressive to me. The worst their behavior has ever been was they went through a terrible grabby stage when they were about 5-7 months old. They weren't trying to be mean, but grabbing and biting feel almost the same, and they were big boys at that point. I was so happy when that stage passed!!
