
Over the years I've noticed European Robins have varying amounts of grey on their faces. Ranging from none, a little, through grey cheeks and sometimes a grey forehead. It was the forehead lack that I noticed first! These pictures will show some of the variations.
A wide band of grey encircling the red

This picture taken by @Donald Talbott has no grey: Robin
and this one by @Э́ллин has very little: European Robin
Then there's my Gallery upload today, which shows a really quite broad patch beside the cheeks, rather wider, I think than the strip below and above: Screened
My Collins has a small image of a Robin with very little grey over the forehead, but doesn't say anything about the bird. So is there anyone who can throw any light on these differences. I've been through a right range.... sex, immaturity, time of year. Anything else?
A wide band of grey encircling the red

This picture taken by @Donald Talbott has no grey: Robin
and this one by @Э́ллин has very little: European Robin
Then there's my Gallery upload today, which shows a really quite broad patch beside the cheeks, rather wider, I think than the strip below and above: Screened
My Collins has a small image of a Robin with very little grey over the forehead, but doesn't say anything about the bird. So is there anyone who can throw any light on these differences. I've been through a right range.... sex, immaturity, time of year. Anything else?