We usually do once a day treats for our animals as well. I have so many birds, nobody gets too much though. We do it in the evening so those in the lay boxes don't get left out. Don't forget chickens love meat, eggs, and most things protein, while fruits and most veggies, especially lettuce have...
We might be neighbors! Well, I'm just south of the border in CA. But same weather.
I like flock raiser. Are you also offering free choice OS? Also, you didn't yet state what treats you feed? Are you considering taking a fecal sample in?
I have had the occasional weak egg be broken, eaten, or...
Most worms are not visible in poo (I think only round worms and tape worms are visible). A fecal float at the vet is usually around $15 and they can tell you which worms you need to treat for IF that's even it. Highly recommended. :) I would make a flock poo test, meaning collect sample from...