Java fledgling - chest puff on right side ok?

[Coralline]

Hi all,
New to the forum. Registered to find some java sparrow enthusiasts who may be able to comment.
We are hand-raising 3 baby javas, they are almost 4 weeks old now and all is going well.
We noticed the past two days that two of them tend to puff their chest after feeding, but only on the right side.
They are still getting formula (they seem to take less and less - is that normal?), and the oldest one has started nibbling at seeds too.
On the photo it is not that pronounced, but this is what I could snap.
Other photo is the normal state.

Their poop has been a bit more watery but only this afternoon.

Otherwise no other signs, they are happy and chirpy. Though we would ask if anyone had seen this with their birds?

[Fraza]

Coralline I have breeding Java’s and few other birds and I think they look amzing they have great feathers too look very clean

Also yeah this is the time they will cut down and try to eat seeds every ally I’d say about7- 8 weeks old they shud be fully eating and drinking alone


How’s they doing in other aspects are they starting to fly

[Fraza]

Coralline I have breeding Java’s and few other birds and I think they look amzing they have great feathers too look very clean

Also yeah this is the time they will cut down and try to eat seeds every ally I’d say about7- 8 weeks old they shud be fully eating and drinking alone


How’s they doing in other aspects are they starting to fly

[Coralline]

Hello Fraza, thanks for the response. Yes, they are starting to fly shorter distances and are pretty agile already! As in they are all over you if they feel like it Of course they can never be separated as siblings for too long.
They have water, seeds and veggies available at all times, but right now they are still just nibbling at it but not eating - they are nibbling at everything though
Here are some more photos. Love these little troublemakers beyond reason

[Fraza]

Coralline they are quite a strange colour too I haven’t seen them like this

[wildbird]

They look so comfortable sleeping in your hand! They are gorgeous! The silver on their back will turn white after several molts, usually. These are hand tamed birds and will be wonderful pets. Javas have to have at least one other Java with it, if you are selling. They are happiest in a flock. It would be great if you kept them.

[Coralline]

We have the parents that are wild (we bought them after searching for quite some time) and we're keeping the babies for sure They are wonderful pets, occassional poop on you aside...
Yes, the greys will probably go away, after a few molts, although the father has a very subtle bluish grey tint to his coat.

[wildbird]

Lucky birds! Maybe there's some silver in the father's background.

[Fraza]

The parents are wild ? Likeiterally wild or just wild type

[Coralline]

Sorry! Didn't watch my terminology and English is not my first language.

The parents are also white, and captive-bred. What I meant with "wild" is that they are not tame. We saw some videos of tame java sparrows in Japan and thought, if we were to put in the effort to raise tame birds, these would be the ones.

We live in Denmark so it took some time to acquire an adult pair, but they were so untamed that they went crazy in their cage just from us entering the room. That's what I meant by "wild".

[Coralline]

More photos because the colours are different. Wish the grey dots would stay on it looks so cool.

[Fraza]

Coralline they do look really cool and okay yeah I get you now Atkeast these three are tame

[wildbird]

They're so cute! I had to go back and look again. Great photos!