My 5 baby Java Finches all made it to adulthood @Former-Member Which doesn't always happen with baby birds, so good to see.
My first batch of baby Javas in a few years, so it was exciting.
Their beaks are almost turned orange (from black) now, like their parents.
Many/ most Finch species (except Zebras & one or two others) need live insects to feed their babies (to raise any) - eg Termites, mealworms, fly maggots, etc.
Otherwise they don't raise any babies.
Getting insects (regularly) to feed finches is difficult, messy, & a pain in the B......t (I don't do it).
The Javas raised their baby Javas on Dry Egg & Biscuit Mix (I buy), which is so much easier.
That does not seem to work for my Canaries.
My Canaries only ever raised babies (over 10 years ago) - when I Boiled & crushed fresh egg for them every day.
Too much effort, & the crushed boiled egg goes rancid in the hot Summer weather - so no baby canaries.
Adge