Robin 119 trillion

I know it's another Robin!But the more shots I take of them. The more I notice?
For example.I never knew they had Brown eyes! They adore Meal Worms BUT if you soften them with warm water,they like them even more!
Don't they get well cared for @ my house?
The Robins are becoming very aware of the Cats so they now arrive at the tree over the feed tray and give a sharp 'trill' b4 showing themselves and landing on the fence?

Nikon D3 + Sigma 170-500 APO f5-6.3 in DX mode = 750mm 1/250 sec @ f8 ISO 560

Should have my Sigma 150-500 O/S back in the next few days?I've enjoyed using the 170-500 so much that I think I will keep both?One on the D3 and the other on the D800!