Some are smaller than you think. Diamond doves, for instance, are much smaller and more petite than a cockatiel at 71/2 inches. The second most popular companion dove, the ring-necked dove, is around 10 inches.
You can house diamond doves and ring-necked doves indoors. You don’t need an outside aviary, just a large flight cage no smaller than 18 by 18 by 30 inches (larger is always better).
They’re not aggressive. You won’t have to worry about broody, hormonal behavior being taken out on you; just the amorous cooing of the male if he’s around a female.
They have hearty appetites. Most eat a seed mix, along with cooked brown rice, mixed vegetables and shredded greens. Since they swallow their seed whole, you won’t have to contend with wayward seed hulls; just be sure to give them grit to help them digest their food.
The common name refers to their wing coverts, which have white dots.
The male not only coos, but performs a dedicated courtship dance. That said, they are happiest when kept as a male/female pair, (males might fight).
Native to Australia, they inhabit open grasslands and scrub brush. You can make them feel secure by placing their cage near a wall and placing bird-safe branches or plants around.
Diamond doves can live up to 15 years, if properly cared for.