Unexpectedly "fostering" multiple hens and their chicks

[RoostersAreAwesome]

Hi, I'm new here about a week and a half ago I discovered a hen laying on her eggs. Her eggs hatched a week ago(she had ten chicks). I live in Florida and in my neighborhood we have chickens roaming around. I have no clue who the owners of any of the chickens are and honestly I don't think the owners would even know what chickens are theirs. Lol that being said these aren't "my" chickens but I do feel a responsibility to help them out in what ways I can. For the past week I've been struggling helping this hen protect her flock. She has a rooster and a yearling hen helping her protect and so far have only lost one chick due to hawks. Well today I discovered that another hen had chicks under my house(about 5 chicks). So now I got two hens and their flocks in my yard. I don't have a coop, I bought a waterer and some feed for them, my yard isn't big enough for a run and I really just need some suggestions on how to help these flocks. I considered building a coop but again, these aren't my chickens they have never been in a coop and if I was to coop them I'm not sure how prepared the chicks would be to fend for themselves whenever they got too big to stay in the coop. I don't have a lot of money to invest in this rescue mission either (that's why I don't have any of my OWN chickens lol). My local home depot had NOTHING to help me out either... No netting, no decoys, no reflective tape...nothing of use. I do have a poodle/terrier dog but she is lazy and doesn't stay outside with the chickens (probably bc I've scolded her so many times about chasing them!). I do have some cover in my yard like bushes and shrubs, but for the most part a lot of the yard is open. Any suggestions would be appreciated. My next step is to get a pellet gun or bb gun and sit outside and have target practice until either I get a hit or these predators no longer want to come around. Which honestly seems like the best, quickest, least time consuming, cheapest route thus far. But I'm open to suggestions and advice. Thanks in advance for your time!

They are feral chickens, they don’t belong to anyone. Much like feral cats, they have adapted over generations to be able to survive without the help of humans. However, also like feral cats, they certainly will have a shorter lifespan and few of their chicks will survive to adulthood.
If you want to take care of them, your best bet is a coop. Though, feral chickens are also like feral cats in that if you feed them without a way of collecting their eggs, their population will soon get much bigger. A coop is also good because you can get them to lay in a coop, and then you’ll be able to control their population by taking their eggs before they can be incubated.