Rhode Island Reds may be the easiest animals on this whole list. A heritage dual-purpose breed with big appetites, confident temperaments, and sharp memories for anything involving food, Reds do not so much learn a recall as seize on it. Most keepers report the same sequence: a few afternoons of shaking a treat container while scattering something tasty, then a lifetime of being charged by an enthusiastic red welcoming committee the moment the rattle sounds anywhere on the property.
The rattle does the teaching
Pick one sound and never vary it: a lidded container of scratch grains shaken in the same rhythm, or a short distinctive call, always produced a second before the treat appears. Scatter the treats widely rather than dropping them at your boots, so subordinate hens get a share and the call predicts food on the ground instead of a scrum around your ankles. Reds are assertive at feeding, and the lowest-ranking hens are exactly the ones who will otherwise learn that the sound means being chased off, and stop coming.
Afternoon timing hooks into the roosting instinct
Train in the late afternoon and the lesson doubles in value. Chickens naturally return to the coop as light fades, so a treat call delivered an hour or so before dusk works with that current, and within a couple of weeks the flock will coop itself on your signal rather than on the light alone. That buys you freedom: you can close them in early ahead of bad weather, a visiting dog, or your own evening plans, instead of waiting for stragglers in the dark. Free-ranging Reds that ranged too far get one more reason to head home.
Keep the treat a treat
The breed's enthusiasm is the only real hazard. Treats scattered daily can quietly swell into a meaningful share of the diet if each session is generous, diluting the balanced ration the hens actually lay and thrive on. A small handful for the flock, not per bird, is plenty, because the Reds are responding to the ritual and the flavour, not the volume. Vary the payment occasionally with vegetable scraps or a few mealworm-style treats you already use, keeping the same sound in front of whatever arrives.
Expect comic levels of success, and manage them
A well-trained Red flock will also come running when a similar rattle occurs by accident, when a toolbox shakes, when any container moves, which is funny until it is underfoot during yard work. Manage it by keeping the training container distinctive, stored in one place, and by not paying accidental recalls with food; hens that investigate and find nothing recalibrate quickly, because their intelligence cuts both ways. Chicks raised by a trained hen learn the sound in the brooder yard without any separate effort, following her sprint toward the rattle.
A small routine that runs the whole coop
Once the call works, build the flock's day around it: a morning release, an afternoon recall for a quick headcount and a look at crops, combs, and any limping hen, then the coop secured. Making that afternoon check somebody's named job keeps it from being skipped, and KinsLe's Care Teams lets you assign the Rhode Island Reds' treat-call and coop check as a daily task with completion marked and timestamped.