What's Wrong with the Eyes of this Common Grackle--is it Molting?

I saw this Common Grackle today at 6:35 AM, downtown urban centre in Southern Ontario, Canada. It was with other Grackles, a European Starling and House Sparrow. Someone seemed to be mobbing someone but I only caught the tail end so I’m not sure what was going on. They all landed at my feeding station for a breather. That’s how it appeared to me. This one below is losing its feathers around both eyes. Is it a disease or normal molting routine? It seems like the wrong time of year to be molting, since everyone is having babies to look after right now.

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.