Ok, This Question Is for the Birds UPDATE ADDED

They haven't hatched too early, this is how birds are raised. The eggs hatch, and the babies that emerge look embryonic, pink, featherless, and then the mother sits on them to keep them warm, and feeds them as they grow and develop feathers etc. The mother is feeding them, you just don't see her do it.

My finches just had babies, and they have just gone through the process you are describing. Today they finally look like finches, instead of silly-looking balls of fluff.

Sure, put food out for the mother. If the mother wants it she will eat it.

E., I would contact the Hawaiian Audubon Society.
http://www.hawaiiaudubon.org/

I use our local Audubon Society for when we've had birds and natural critters in distress. They are good at giving resource information and advice. (Julie S was right, I grew up in Honolulu but didn't stay long enough to learn as much about the wildlife. My bird knowledge is savvy for my own area of the Pacific Northwest.)

Also, mother birds will protect their young by nesting directly on them at times and keeping them out of sight,esp. if the nest is as exposed as you suggest. I do think the experts, though, are the best to advise you so that you can resolve this with some peace of mind and you can ask what to do next time. Good luck!

Nervy girl will know the answer. She seems to know everything about birds and lived in Hawaii for some time as a child.

I had a small bird set up a nest in one of my planters. I had no idea of course and poured water on the nest watering my flowers. It was then I saw the little fluff balls. I felt awful but thankfully they all survived. The mom just sat on them too.

We just kept our bird feeder full of seed.

The dad was always nearby in a tree.

They do feed them - it's probably just so tiny you can't see them.

I can't remember how long they stayed in nest (a couple of weeks?) so you may have a little wait for the ladder :)

First of all, there's a myth about not touching baby birds. While there's no need for you to get "involved", the myth really has to do with sickly babies who are booted out of the nest by the mother. Nature tells her not to waste time/energy/food on a bird that will not survive. Well-meaning humans put these weakling birds back in the nest, and the mother boots them out again...leading to the "I touched it, now she won't" story. The truth is, healthy babies who somehow fall out, can be put back in successfully, although there is a risk of attack by parent birds who see humans too close.

That said, she's probably feeding them and you don''t know it. She's "sitting on them" to keep them warm, and that's fine. If they are alive, and if she is continuing to come back to the nest, they are fine. And, frankly, if they are all not fine for the same reason (some disease or something), there is nothing you can do about it. Frustrating but the reality of nature.

Yes, they are tiny - but tiny birds have tinier babies. We had a wren build a nest inside an open feeder of ours, and I couldn't believe the size of the eggs! Seems impossible that anything could survive that - but they do!

Since you don't know what the mama bird eats, it doesn't make sense for you to put food out. And what food? Some birds are seed eaters (finches, cardinals, etc. - but within that group, some come to feeders and some are ground feeders) but others are meat eaters (woodpeckers, robins, etc., that eat worms and insects). You live in a lush area in a tropical latitude, so there are abundant food sources available in both categories.

I'd leave them alone, set up a Go Pro camera from a distance if you are seriously wanting to see more, and hope for the best.