Cross posted from the 300mm plus lens club...
Today at the feeder, through the window and by the time I'd put the 1.4 TC on he'd gone,
K-3, DA*60-250 and my kitchen window. ƒ4, 400 ISO.
No doubt attracted by the same mice that brought us the Northern Shrike. I didn't see a single squirrel while he was sitting up there.
If you see any mice or squirrels down there, let me know eh? (He says "eh" because he's a Canadian owl.)
And one with the 1.4 TC, right after this image, he swooped down, pulled a mouse out of the snow and took off.
I've put on the A-400 for a few more images.... he' still there, but it's too dark to shoot.