No interactions present.
something i learned recently, is that blackbirds and i guess other garden birds would have moulted most (not all) of their juvenile feathers by now, and therefore will be displaying their 'gender plumage', so a brown blackbird in november is a female.
blackbirds of both sexes often have white patches, sometimes quite extensive, but usually like this. The head and neck are "popular" places for them.
Lat/Lng: 50.8, -2.3
OS grid ref: ST8002