Yes but not only that, we get underperformers of all kinds and sorts in our trade from the farm industry.
In theory yours and mine could be a genuine species, just a "dwarf" of sort, yours "dwarfer" than mine
but yours is alive and mine is gone
I doubt we'd be ever able to tell barring a DNA investigation, in which neither you nor me will ever invest.
One probably needs to get several dozen or a hundred of (sub)adult TSNs from all over the US to see how many similar and dissimilar are out there. You were the closest to that goal I've ever known, but your TSN collection no more... and it's ok.