Growing like weeds, and seemingly with no problems. It is amazing to me that these little birds grow so fast, but how they grow is even more fascinating. Think about how much energy it would take to grow enough feathers to completely cover your body.
Learning to perch. There is nothing to perch on in the nest box but so far they seem to be getting the hang of it.
This little bird is actually much more brightly colored than this picture suggests. as Almost iridescent.
It is not easy at this point to get a feel for what the little one will look like when he is grown. One nice thing: we won't have to wait long to find out.