well then i would buy a plush parrot of any kind that you can find, and reverse engineer it.
but if your running out of time think of it this way ,
average price for a plush toy of decent quality between 15-20 $,
materials for the puppet , foam ,fabric,feathers,eye shapes, about 40 - 50 $
plus time, at least 40-60 hours(thats assuming you have done a lot of puppet building and have a very clear foundation in pattern making and construction) (i ll just put in a basic hourly wage here say 15 per hour),
youll be spending more money and time building from scratch, so if you are running out of time to develop a new puppet then the one online is a great way to go, and your getting a lot for your money ,