You can acclimate guineas to accept humans - especially the humans they're used to - by offering treats and by just hanging out with them. I occasionally sit in my pens with my guineas and just, well, sit there and offer their favorite treat from my hand. Now they'll take it pretty easily but it took time. I also noticed a difference between their behavior as keets and adults. Adults were easier IMO.
I don't try to touch them or pick them up, but over a few months, they came up to me for treats with some enthusiasm. They walk by me with no concern. If I move too quickly or reach out for them, they'll run away. If I try to pick them up - they freak.
billfields is right - they aren't chickens and aren't even close to being domesticated but you can work with them over time and they'll learn to see you as a kid's ice cream truck equivalent
. Beware though - I fed my guineas on the porch, and they learned pretty fast that they could come onto the porch any time they wanted. I was cleaning guinea poop off the porch daily.
There is a difference between "tame" and "domesticated". Dogs and cats are domesticated, chickens are too, but guineas are still wild. I use tigers as a comparison. You can tame them but you always have to respect that they're wild instincts are intact (or else) and can/will kick in at any time. Tigers are predators (which is why nobody in my neighborhood has any LOL) and kill for food. Guineas are prey animals and have "flight" instincts - not fight. Anything coming at them from above, or too fast, or too unusual, is an immediate threat of death - your dogs and cats, an owl, a raccoon, an unfamiliar person, small children (like my over-active grandsons LOL) ...etc. That's why I prefer the word "acclimating" to "tame". You can tame a tiger, and elephant, a skunk even, but it's really really hard to tame a prey animal with all their wild instincts working on them constantly - especially one that is as intellectually challenged as a guinea. Time and patience is the key.
Introducing new fowl to a flock is relatively easy. Put them in an enclosure separated by chicken wire and let everybody see, smell, hear each other, but are still protected by the wire. After a week, two or three, they should be fine together, but supervise! and be ready to intervene if it doesn't go well. If it doesn't wait a few days to a week and try again. They'll figure it out eventually.
You have a nice sized flock, but you still need more guineas in my opinion. Guineas like to stick together, and they'll be okay with other species, but they're happiest with their own kind. I agree with billfields again - if you can manage to keep around 10, that would be ideal. And, yes, 8-10 weeks is good for programming them to know where home is.
