'At the risk of posting off topic I will post one other photo.'
Not OT and not a risk. Those are wonderful pictures and I gave you a pie for posting them.
It must be such a joy to be able to see those little babies. I have no idea where the birds that come to my feeders are nesting.
When I was listening to the goldfinch singing via the link you provided, I scrolled a little further down. I was curious since 'your' goldfinches stay all year whereas 'mine' come and go. So anyway, I saw the little video of the acrobatic finch. In the past I would hang a mesh type net with nyger and watch as 4 or 5 little acrobats would be all over it. For anyone that has not yet pulled up that link, I encourage y'all to do so.