Fine seed, sized for the smallest of doves
A diamond dove is one of the smallest doves kept as a pet, and its main everyday diet should be a fine seed blend of small millets, canary seed, and other tiny grains — closer to a finch mix with dove additions than to a standard dove blend. Coarse mixes built for larger doves contain peas, wheat, and cracked corn that a diamond dove simply cannot swallow, so the bird picks around them and ends up eating a fraction of what you served. Serve the fine blend in a shallow, low dish on or near the floor, where this ground-feeding species naturally prefers to eat.
Grit is not optional for a dove
Unlike parrots and finches, doves do not husk seed; they swallow grains whole and grind them in the gizzard, which only works if fine grit is available. Keep a separate small dish of dove-appropriate grit in the cage at all times and check it whenever you check the seed — a dove with an empty grit dish is quietly unable to process its main diet properly. This is the single most overlooked part of diamond dove feeding, and the easiest to get right once it becomes part of the daily round. A cuttlebone or mineral block alongside covers calcium, which laying hens draw on heavily.
Greens and extras in dove-sized form
Offer finely chopped leafy greens daily — bok choy, endive, or tender lettuce chopped small — scattered over a flat dish or mixed through the seed so the bird encounters them as it feeds. Diamond doves are tentative with new foods, and scattering works better than presenting a single intimidating pile. A little crumbled egg food once or twice a week suits moulting birds and pairs feeding young; otherwise the fine seed, grit, and greens carry the everyday load. Fruit is largely ignored by this species and can be skipped without the diet missing anything.
Water in a dish it can use safely
Diamond doves drink by immersing the bill and sucking water up, so provide a clean, shallow dish they can drink from without bathing in it, washed and refilled every morning. These are desert-country birds in origin, tidy and undemanding, but their water still fouls quickly when seed and droppings land in it, and a bird this small cannot afford a day of stale water. Keep dishes at floor level but positioned away from the busiest perch line, and rinse grit and seed dishes whenever they show a film or scattered droppings.
Small bird, early warnings
Because a diamond dove eats so little in absolute terms, a day of not eating is proportionally serious: a bird that leaves its fine seed untouched, sits puffed on the floor, or stops its soft cooing should see an avian vet promptly. Check that a bird which seems to be eating is actually swallowing — one that picks up grain and drops it repeatedly may be struggling with seed that is too large, which is a diet problem you can fix the same day by returning to a finer blend. Setting seed, grit, and water as recurring duties in KinsLe through Care Teams ensures whoever feeds your diamond dove checks all three, each marked complete with a timestamp.