Robin VI (Teardrop)

Might as well call it VI as I have lost count of how many I have posted?
This was taken quite late this Evening and the light was very 'grey'! So being as the bird was fairly close I thought I would try a little ''Fill in Flash'' just to see if it would lift the shot a little.The flash in fact put a wonderful 'catch light in the eye with just a hint of blue to it,which reminded me of a tear in a child's eye when starting to get tearful and the bottom lip 'Puckers'?
Hope you like the shot!

Nikon D800 + Sigma 170-500 APO f5-6.3 500mm in DX mode = 750mm 1/160 @ f6.3 ISO 2500 and supported on my trusty monopod!