There is no doubt that these recordings are real!
During the past 15 years it has been difficult to prove that Victor and Maylor were speaking in conversational language because many thought they were only repeating what they were taught or it was somehow faked. This new discovery solidifies the fact that it would be impossible to fake these recordings, especially when the budgies are communicating in reverse as well.
"When a budgie speaks well they will often want to communicate with us. In the beginning, some will practice our speech using mimicries. Others from this highly intelligent species, will go one step further and begin to communicate intelligently with us. When they begin to say things they have never said before, most people can only pick up about 10% of what they are saying in real-time. If we have the willingness to record them and study what they are saying, we can begin to understand them."
Ryan Reynolds, Parrot Intelligence Researcher