By Slanted Light

Poor baby and poor birdies! *hugs you* I hope the paracetemol helps your knee. Can't even begin to hazard a guess about the blue tits other than to say that there's probably a plot there involving some sort of covert pulse weapon possibly stolen from the military if it's canon-era, or Old Magic if it's AU and, sad though it is, maybe it was best they went together so neither had to live without the other. *hugs you some more*

I'm sorry I can't help with an Easter egg, but I can give you this, which I made using one of your pictures as the backdrop. I hope you like it :-)