YAY, progress! Mine at times still need to be walked into bed, as I wont let them stay out any later than 430pm (Winter) in the summer time here, it doesn't get dark until about 830pm but winter it is dark around 5 ish, so as it gets to dark to quick and they haven't gone to their hut they are slightly worried and confused! So we just ensure they are in their hut by 430pm

As I mentioned we have 2 older Guineas and they often will perch in the tree that we have hanging over our chicken hut...The male generally does and the female joins him some nights...she has a love affair with one of my drakes, so she will often be with him in the duck hut....either she perches in the hut and he sleeps under her or she is in his box with hi....its so cute and funny and strange to see such a connection between them...they often just lay together in the day or wander around with each other lol lol
I am not sure if this will help you slow down the flys, but I hang (fresh) Lavender in bunches all around the huts and over the entrance of the doors, as well as I buy fresh vanilla beans and open them, a bit so the smell comes out and I place a stick of vanilla bean in with some bunches of lavender, mainly the ones near the entrance, this helps us in the summer with flys and I do the same in the duck pen, I also throw in my rose petals and sticks of lavender in the huts and I do believe it helps and the advantage is, that the huts smell nice! Lavender is so easy to buy and grow. we have just a few bushes and I get plenty. I have also read that some ppl buy the things that can hang in the car (air freshener) in Vanilla and hang them....I have yet to do this....But all in its hard to rid of the flys completely, but I tend to clean my huts each morning with a quick pick out of poop and refresh, then once a week a good clean and then a few times a year a big clean, walls and all...that happens mostly in the spring and summer months.....For feed containers I have Grandpa feeders, they are a little expensive but in the food that I now save and time saved as I only need to fill up on a weekly basis and yes it took my flock a while to work them out, but they are a huge success now and I hardly loose any feed, minimal mice now and I am not feeding the wildlife birds as they are to light to operate it and tend not to know what to do anyway! Of course my young chicks, ducklings and keets cant operate them, but as they grow and become grown they learn quick as they have seen the others accessing them. So I have feed containers in the huts for them whilst they are young and with mum... I actually have some broody huts that are all decked out so as mums can have time looking after and teaching their young, then when they are bigger I start to integrate them. As my little huts are not far from the others and they have their own run, the others accept them quite readily when they start to free range, as they have been use to seeing them and hearing them, it also helps the mums not loose the pecking order to much either..
I love your new profile pic as well, is that your daughter and family pet dog? What a beautiful picture! Anyway good luck with your keets, what do you plan to do with them? I just have mine as part of the farm family....I couldn't eat them, but I do use their eggs and sell their eggs....So mine are for keeps lol...

Kaz