Hi, everyone! What height and width is a true jumbo quail? I've done lots of reading on keeping coturnix, and I'm currently building a hutch for the 9 JMF bloodline chicks I have. I can't seem to find any info in my searches for how big dimensionally true jumbo get, like JMF jumbo, so I can make a properly sized cutout entryway for the enclosed end of their pen. The area will be enclosed on all sides by plywood, with a hardware cloth top and a plywood door. What are your cutout/entryway size recommendations? Thanks!