Yup, all the chickens have names. The quail too even though they don't really care. But the chickens know their names and will come to them, can be identified by their individual sounds, and I know each one's favorite treats and who lays which egg.
I started with 4 EEs named after the Jurassic World raptor squad: Blue, Charlie, Delta, and Echo. Then at about 4 months old my Charlie was killed by a predator and Echo turned out to be a rooster and was rehomed, so I found similar aged pullets at a local farm and Clever Girl (RIP) and Char (Charlie2) joined the group. I took in some rescue bantams, Hawk the OEGB and Pearl the Polish, and that was it for about 4 years. Then last summer since my originals were getting older and laying less I added in 4 more 7 month olds. I tried to mostly keep with the raptor/army alphabet theme so the EEs were deemed Foxtrot and Indo (Indominous) and the Silkie mixes I picked up on Halloween were deemed Ecto and Ghost.
Then on May 5th I went to the local TSC and they had Welbar babies, and I couldn't resist. So since I had B-I covered and poor Pearl all alone on the alphabet, and because the babies came home on Cinco de Mayo, they were deemed Queso, Roma, Salsa, and Tango. Everyone looks different except for Salsa and Roma, and I think they'll be easier to tell apart once they get fully grown but for now they sport leg bands. My husband used to make fun of me for knowing which chicken made which noise, but he recently got me a chicken coop camera, Velociraptor Warning sign for their coop, and will sit and watch them during the day and comment on them because he knows everyone's personality now. They're addicting little pets.