See, this is where I envisioned this thread going - i.e. tangents, as this forum does so well 8)
I'm answering questions, keeping with the flow...
Lady Gouldian finches are native to northern Australia, and are considered to be endangered in the wild, but there are lots and lots and lots of them kept by aviculturists. They are notoriously terrible parents in captivity, but, the one clutch of babies Edgar and Chloe had could not have had better parenting. And, considering that the mama bird Chloe was an amputee, that's saying something. Birds have a lot more work cut out for them in the parenting department than mammals do. Edgar did the vast majority of the feeding, but Chloe was devoted as well.
One of the coolest things about having the babies, was listening to the boys learn to sing. They learn by practicing and start out very harsh sounding.
The color combinations found in the wild are the red or black head, purple breast, yellow belly and green back. The finches I have that are pastel shades are mutations (rather than hybrid). The distinction between mutation and hybrid is important as far as possible impact on the future of the species in the wild goes.
Personality wise, they are pretty laid back for finches, not aggressive toward other birds either. Unless they are hand raised from a very early age they do not tame. That is not to say they're not tamer than the birds in the wild, but, I would be more successful in coaxing a grown chickadee that comes to the feeders, to come eat out of my hand than I would an adult gouldian finch that has lived in my house since birth.
They don't know their names, don't talk. They do come over to see me when I come to the cage, they're friendly to me, just not tame.
I am pretty much maxed out as far as how many can live happily in the cage together. Its about 5' T x 4' W x 18"D. They like to fly and do not do well when crowded.
Yes, I think its a hoot that Jenna named the twins Joe and Joey.
It does seem that the naming game has taken an intellectual turn, we'll just see how it plays out. Keep the votes coming.