Tuesday, 8 December 2015

[cobirds] A Conceptual Big-year question

... and no, I'm not doing one.

But this occurred to me today: Are Big Year totals subject to retroactive increase or decrease, based on subsequent splits and lumps?

If we are expected to adjust our life-list totals accordingly, even if birds we've id'd that have been split or lumped were differently
countable when we saw them, then does that concept apply to former Big Year participants?

Examples: can a past Big Year lister retroactively add Pacific Wren, Purple Gallinule, and all the Juncos (if they're that old!)?
Must they remove two Rosy-finches, thus removing a handicap from next year's hopefuls?

Dave Cameron
Denver



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