I think this picture is veeerrryyy nice:
The way the horizontal and vertical mixes - because of both the branch and the birds positur - and the way the bird is really active.
A 'true' species...
I don't know exactly what I mean, but perhaps something about 'the niche and the species' in it's own rigth. Sorry ;-)
I also think the way it holds the branch is cool, like if it was fastened with screws or glue. No force needed there, all is used for being and doing.
Maybe I also have a feeling for these babblers ;-)