I had a feeling they were both older. The pair came from a Petsmart and had no leg bands. They had a healthy clutch of 4, just a couple of month after I got them in July of last year.
The female became eggbound early in the spring when I had given them a nest to try for a second clutch--she finally laid a couple of soft shelled eggs, and then recovered fully with the help of some added calcium, so I decided not to let them breed anymore for fear of loosing her. Felt they may have just been getting too old.
Other than that one eggbinding, they've been a loving couple, and apparently in good health this past year. But I noticed about a week ago, that the male's breast did not look as colorful as usual, although he seemed to be fine. (We all know how well they hide any symptoms though, eh?) I started supplementing with some NV powder instead of the usual Calciplus since I thought it might be a problem with molting, though I haven't noticed any loose feathers around.
Last night I came home from work and he was on the bottom of the cage, in very bad shape - fluffed up and puffing. He died within the hour. I was glad that I had left a sprig of millet on the cage floor, and bath water, when I headed out to work. I know he had access to food and water at least, in his last hours.
It was so sad to see Jane down on the cage bottom looking at him, and when I removed him she called for a bit....
I'm glad there's a bird mart this weekend in Cloverdale. I'm going to go and see if I can get her a Society finch to keep her company. I feel so bad for her all alone now, but do not want to get another goldbreast male for her. If I do, then she'll surely die the very next day!
I had planned to get Societies next time anyway. Since I can only have one pair due to space, then I will get societies. I had them years ago, and I like their song more than the goldbreasts, and they'll be calmer, and a lot less picky about their food! So I'll start with one, just to keep Jane company. When she passes then I'll get another mate for my society.
This is when I wish I had lots of room for an aviary. I hate keeping a single bird like this, so knowing me, I won't be able to wait for the quarantine period! She is so lonely, and I hate to leave her until the weekend even, but have no choice. This is the hardest part about having caged birds!
Anyway, thanks for letting me vent my sorrows on you all.
I hope you have good luck at the bird fair. I wish you were closer, I would have been able to help you out. 
Hope she's OK.
What do you all think? Boy or girl?....