Help with feral kitten?

they will be fine. they hiss to tell each other o stay away. a growl is a serious warning and i am sure she is all ears for that. feed them in separate locations. it was evans house first. she is the intruder. she was ferral and is not used to being handled and will get over it if you are kind and loving and dont scare her.she will eventually learn to trust you if you put alot of time into her. do not forget about evan. i am sure he is jealous because he views you as his an resents the intruder even if at times he is happy to have a buddy. food and you are his property and sounds like he is making that known. they are still tiny but do not ever get in the middle of a cat firght. if they do get in a scrap spray some water or separate with a long broom taking care not to hurt them if yelling loudly and clappng hands does not distract them . cat bites are nasty and hurt and can get infected very easily because they are puncture wounds and if they are bad enough to make you go to the emergency room we have to report all animal bites and authorities come. they may want to remove your pet for a few days .it is a nightmare .so steer clear of getting in the middle of cat fights. i think they will be fine. have two food and water bowls in different places of the house.one for her one for him to avoid them eating next to each other and fighting over food.two litter boxes is a good idea as well.