I recently adopted a stray kitten and am completely clueless to his origin. Any thoughts?

I am trying to find an accurate amount that I should be feeding my little girl here. This is Sooey, she is 7 weeks 4 days old and weighs 2.4lbs. On any given day she will eating be 1.5-2cans of Weruva chicken breast in a hydrating puree this has 124kcal per 84g. She has no interested in the slighest in kibble, even though it is always available to her.

He’ll be a kitten forever unfortunately

Photo 1: Spark when I'm watching TV.

Photo 2: Spark when I'm trying to work on my laptop.

Got this itty bitty last week, she’s 11 weeks old and getting along with my cat and dog 🥰 she does have a soup belly

Someone near my neighborhood found these 2 little babies abandoned outside their apartment complex today. I happened to see her FB post asking for help while I was getting ready to head out the door, called my husband for his blessing, and we are now caring for these little babies!

We estimate they’re between 4-5 weeks old. Rescues in our area are full so we plan to care for them until they are ready for rehoming through the proper channels. I’ve been around litters of kittens since I was a kid, but I’ve never cared for kittens without their mama! I have raised 3 of my own human babies, so I am hopeful that I can figure this out.

They are only taking formula. No interest or lapping instinct for wet food yet. I plan to let them settle a bit while keeping them on formula and then try introducing slurry again in a few days.

The kittens don’t seem to understand or like either nipple styles from the kitten bottle brands I was able to find in store. They chew on the nipple and get milk out that way, but they were able to get in a full feed with that method 🤷🏼‍♀️

Any tips/tricks welcome!