Starburst
Jesus Loves You
A lot of people prefer to offer a supplement of grit, just in case, and you want to make sure that they don't try using sand as their grit (too much consumption of sand can lead to impacted crop.)We don't provide any grit since the run is covered in washed, construction sand (based on the advice of this website: https://the-chicken-chick.com/chicken-coop-bedding-sand-litter/) mixed with PDZ, and our bare, naturally sandy, southern California soil when they free range. Should we provide grit anyway? I've checked the sand in the coop carefully and don't see any grains or little rocks that are red. Maybe they eat the sand and this causes issues?
That said, from what I've seen in the pictures, as well as the area you describe yourself living in, I think that providing a separate dish of grit wouldn't be necessary, but you could always choose to, just in case.
I like to use this grit, but just about anything works!