I got confused about the name "ipê" (first time I hear it, my Portuguese is basic at most), it's also known as "lapacho" in Argentina, "tajy" in Paraguay and "araguaney" in Venezuela.
Same, in the picture from the article I clearly identified a Tajy Sa'yju. Fun thing is that this wood is used for absolutely everything in Paraguay. From posts to delimit rural properties to fuel for barbecues.
"You can know the name of that bird in all the languages of the world, but when you're finished, you'll know absolutely nothing whatever about the bird [...]".
Ipe is an indigenous word. Congress from Tupi languages probably.