Hi, Emily, Indie and Bluey, welcome to the forum. No, there is no need to DNA a ringneck, they are sexually dimorphic once they reach sexual maturity so unless you need to get a sample for blood work, why stress out the bird and pay for something that you don't need to? I am afraid it's impossible to tell Indie's gender because without knowing how old the bird is, it's nothing but a guess. You will have people telling you they KNOW because of the way the bird perches (females low to the perch, males more erect), the vocalizations, etc but, again, it's nothing but a guess unless you know the age and background of the bird. Indie's plumage is uneven which is usually a sign of young age BUT psittaculas are very reactive to a bad diet (too much protein and fat) and the first sign is always a bad plumage (as well as what people call a 'mojo' molt) so it is entirely possible that it was fed the wrong diet. The wrong diet for psittaculas is, unfortunately for the birds, VERY common because people think that any parrot diet is good for them not realizing that there are all kinds of parrots with all kinds of diets and any manufacturer that labels a bag of food as 'parrot food' is scamming you (the pet industry is completely unregulated so they can call a product or claim whatever they want on the label and not be legally liable for it). If you free-feed protein food (seeds, nuts, pellets, nutriberries, avicakes, etc) to a psittacula, eventually (and, with them, it takes two to three years only), it will show on the plumage (and destroy their livers and kidneys in the process). Then you have size with Indie being larger than Bluey BUT parrots, same as people, do come in different sizes even within the same species with birds bred from half-depleted or badly fed parents always being smaller than birds bred from healthy, strong, well-fed parents - so we can't really use that, either. We also cannot use the color of the feet or the size because, again, like people, these are individual characteristics. The one thing that makes a difference is speech - not the actual voice which would resemble the voice the parrot heard while learning the words (although all the IRNs I've heard sound -adorably!- like sweet little girls

) but the actual fact that the bird does speak and how many words it says. Very young parrots usually don't say many words if any at all. They normally start learning when they are juveniles so in order for a parrot to say several different words, time has to pass. BUT, again, although all parrots are smart, there are some that are just plain genius and some that are more like Forest Gump

Personally, I would wait a year or so and see if Indie gets a ring but, if you take bets, I will put my money on it being an adult girl that was not fed right.