Sun Conures are not known for being good talkers, maybe a word or two. So she may never talk. Will try some tricks, she is only 4mos old and has not gotten her adult coloring yet. Right now we are getting to know each other and my goal is to have a nice, friendly, and happy bird. 
I don't use newspaper, I use crushed walnut shells. 
Watch the walnut shells. I wouldn't use them at all. They can get moldy once they are wet and they will get wet in a bird cage. The bottom line is that organic litters (especially walnut shell or corncob) can become hotbeds of mold including Aspergillus fumigatus and possibly toxin-producing species of Aspergillus. High spore counts are aerolized from below the grate by wing flapping, cage cleaning, and basically any other movement. These high spore counts can result in an overwhelming fungal pneumonia that will kill your bird. Also, pet birds don't always show signs of respiratory disease until their lungs are abcessed and their airsacs are compromised. Pet birds generally don't have to fly, so they are living the ultimate in sedentary lifestyle. They can get by with major respiratory compromises until its too late.
Not only that, but birds can and will eat walnut shells. The problem is the walnut shells are ground so fine, the bird won't "chew" them, but swallows them whole. Even though they are ground, they are too large to pass out of the ventriculus (the gizzard) easily and the hard shell is very difficult to digest (it takes time). So what you get is a fungus loaded bird with an impacted ventriculus.... Impactions aren't fun. They also can kill a bird if left untreated.
Use newspaper, its safe, nontoxic, easy to change out, and if you want to, you can still throw it in the recycling bin after your bird is done with it.
