Well Richard for arguments sake, not knowing the juxtaposition of the mountain roads adjacent to your abode.
If I was approaching the last bend behind which your house stood and saw a Cinerous Vulture suddenly appear over that hairpin, having clearly passed over “your address”…I would certainly tick it off as having passed over my property albeit not seen from…you wouldn’t I suppose?😮
There may be a number of “odd” occasions where you might feel justified in adding, or subtracting to your annual/life garden list that could be deemed as being permissable?
For example this year in mid-April I saw (very high up) an “almost” certain Yellow Wag suddenly “break off” it’s flight line and buzz a soaring Sprawk, I got nothing on the putative Wag, other than It was, or, a Pipit with a seemingly long tail, just too high to bang to rights!
Another occasion, a flying finch out of a low early sun, during previous decades I’d have said Bullfinch, due to that glint of what appeared to be a pinky red, or was it the low sun that exaggerated the “tint?”
Unfortunately they’ve become so scarce locally…I can’t take that chance, even though I have seen one less than a mile away, bounding over on a single occasion.
Hoping you “cinerously” tick that vulture Richard if perchance it presents….as I certainly would.😀👍