You need to train them, which is easier than you think.
If you've been offering them treats and know what their favorite is, use that. Meal worms are a favorite of most chickens. Or use scratch grain in a container that makes a lot of noise when you shake it. Use these in conjunction with a verbal cue and call them.
It takes less than two days to train chicks to come to you.
Next time, start the training when they're just a couple weeks old, and you will have chicks that come to you fearlessly.
I live where there are a lot of predators. Sometimes I need to get my two dozen chickens into the run FAST! So I've trained them to all come running to me when I yell "come-on you guys!" Like torpedos, they all launch toward me and are in the run in half a minute. I always reward with a little scratch to reinforce this behavior.