Colours tones and details look spot on, highlights on the bill are well controlled. I agree a tad tight in the frame but as this is a deliberate close up t show head detail I don't think this is too much of an issue.
I imagine these guys are an introduced species in your parts? So common here, considered a "dirt bird" by most, but fun to photograph - especially the downy chicks at this time of year! Yes to a bit tight - I do wish for more canvas. Good details, and the partly wet bill adds interest.
Thanks folks for your kind comments and suggestions , much appreciated .
Agree with you about the tight cropping .... and Kurt I have no more room at the foot , otherwise I would have posted a looser crop .
The original image forced me to to post it as I did .