Gouldian finch Breeding (4)

These are the Mothers
White-breasted yellow hen &
White-breasted silver cock.
 

Out of 6 eggs, only 2 hatched.
 

After 10 days from their birth.
 

After leaving their nest.
 

Out of 6 eggs, 4 were hatched.
 

They have grown a lot.
 

Unfortunately their feather colors are this color at the moment.
 

Right before they leave their nest.