Welcome to the group! I was able to find some links for parrots and for birds in general. There probably aren't any numbers for specific species (like pionus), but I would expect all the parrots to have fairly similar values.
Here's lots of information from Clinical Avian Medicine, which was published in 2005:
http://avianmedicine.net/content/upload ... pendix.pdfThis link has detailed information on blood chemistry, and may or may not be more up to date. I haven't looked to see whether it's the same information:
http://cpl.med.miami.edu/documents/avia ... ranges.pdfIt's the Avian Reference Intervals link at the Avian & Wildlife Laboratory at the University of Miami School of Medicine:
http://cpl.med.miami.edu/avian-and-wild ... blicationsThere's a simpler list here at the University of Pennsylvania veterinary school:
http://cal.vet.upenn.edu/projects/sscli ... itacrr.htm