Hi,
Here is my experience with chicks and free ranging. I live in town and have had two sets of chicks so far. I put them out right away - the first week only a couple hours and stay with to supervise. I check on them several times a day and get them to eat and drink because for the most part they stay hidden and sleep. I would be checking the same if they were inside - 5 times a day is what I read somewhere. As they get older, they spend more time scratching and pecking but checking in conditions them to come when they hear me call.
There are lot of hawks around here and I did lose one baby chick but they really do spend most of their time out of sight, in or under bushes and can disappear quite amazingly. They tend to not stray too far if there is good cover. They don't feel safe out in the open because they aren't safe. I keep trying to get mine on the other side of the drive way for bug control but it isn't long before they are back on their side, behind the Nandina or in the bushes.
In the evening, they want to go to bed. They are not so interested in going to bed in the late afternoon, however. If you try herding them in before before the day is over according to them, it is very frustrating. Especially if they have that excellent cover that foils predators. Sometimes grabbing one or two will get the others to follow, but all too often they escape as you walk.
However, if you can sit (or lie down) with them until the sun goes down enough for them to realize they can't see, they will come much more willingly. They can't see in the dark (no rods), so they want to be safe before it gets dark. The babies don't seen to know that until they experience it. If they have had the heat lamp on at night their whole lives, they don't know much about the dark , but once they do, the night time routine is much easier. When they are feathered out enough to be outside at night and the coop is assessable, they will be happy to put themselves to bed and not have to find you.
Chasing them around doesn't really work because then they start not trusting you when they are outside. Herding with a stick can work but I found they just freak out and run willy nilly.
What has worked for me is luring with treats and using their instincts to your advantage. You want them to come associate you with the best treats (Meal worms, king worms, sunflower seeds, cat food..) so when they hear your voice they come running to see what you have.
Also, bending down and encouraging them to jump on your back is another use of their instincts - mama hens let babies jump on their backs. They are more comfortable jumping on your back than being grabbed with hands. I say "up" and pat my shoulder or back.
I am fortunate to have a fenced yard with plenty of trees and a hedgerow that is a great place for the babies to hide. The hawks do circle but the chickens have lots of places to hide and spend very little time in the open.
My chickens are always happy to see me and I love seeing them frolicking in the yard and not caged up. I do sprout sunflower seeds for them so they don't eat all my landscaping.