Well, not a real authority on birds, just occassionally deal with them. But, can tell you, birds like cages wider than tall, they fly across not up. Budgies also eat more than just seed, they like pasta, and grated veggies and dried fruit. A bird bath for them is also recommended once in awhile. Nails do need to be clipped or use a cement perch to help wear them down. Thats about my limit here. Clip the wings or not, depends on how well its trained and going thru the training period. Most people find once their birds are trained they don't have to clip the wings, they just let them fly around the room. Good luck. I know these birds are susceptible to quite a few diseases, but like I said, I'm not real good on birds, so you may want to ask a breeder.