My way of not keeping my favorite? I did! I chose one from my very first litter and she is so amazing, it makes it 100x easier to let all the others go. It also helps that I know where each and every kitten goes is the best place for them.Does the shelter have a plan for her? TNR'd to where she was trapped?
In my group we start transitioning the kittens to food when they start to eat moms food. So at 8 weeks old, you must separate the kids from her, so she can dry up and get spayed.
This part is always sad to me, I never get used to this no matter how many times I've done it
Then when she is dry, about 10 days later she is good to be fixed and returned.
Your question about the male outside, she is very likely in heat, yes!
As for cleaning the cage, oh by the way, your set-up is great, a few things you can do, either wear a glove and quickly close/latch the door, or use a stick or something to close it, holding it closed and put a towel over the front including the latch and latch it through the towel to protect your hand. If you use your hand, always keep your hand low, it's much less of a threat to her than a hand coming right towards her.
I always feel sad for the ferals too, they have such an unfair life. Deep inside they are the very same as the kitties we all have snuggling in bed with us at night, they just don't know that people are good. They all need love, a name, a place they feel safe, babying when they are hurt, a place in this world and a feeling they belong and not seen as a pest/nuisance, not trash or desposable.
Very sad to me.
Your question about how to not adopt your favorite kitten?? Haha, well now, it's like this, you can adopt your fave, why not? Or if you are like me and already have resident cats who are not ok with a newbie, or just don't need yet another, remember this-if you fill your home with cats you fostered, then it takes up room for the next cat or kittens you can foster.
Believe me, I love each and every one of mine, 100's have come to me, ferals, old, tame, babies, kittens, orphaned, may, many who I pulled from being euthanized, and each time one of them leaves, a piece of my heart goes with them, leaving a hole inside of my heart, to be filled up with the next one who needs me, and so on.
I remember all of them. I hope they remember me. It's sad to let go, but it passes for the next in line. There's sooo many who need help.
That's what us cat angels are for
Fee free to ask anything!