In Illinois several years ago, they decided it was impractical and unrealistic to think that individual Trumpeters could be tracked back to particular sources. They basically decided they were like Rock Pigeons, and declared that all wild-appearing Trumpeters were "countable" in Illinois.
I think the situation in TN is similar. And I think there is not much point in expending effort attempting to source the origins of individual birds, given the big picture (expanding populations through much of the midwest and spilling rapidly into the mid- South). I don't think this is like the Ring-necked Pheasant that will vanish when the introductions stop. I think these birds are here to stay, likely more every year.
Bill Pulliam Hohenwald TN On Aug 1, 2012, at 11:04 AM, kde@xxxxxxxxxxxxxxxxxx wrote:
Bob,In 2009, while I was chair of the TBRC, we reviewed and accepted a record of Trumpeter Swans from Dyer Co. In that case, the bird was banded and tracked back to be a wild-born bird from an "established" population in Wisconsin... where "established" is as determined by the Wisconsin BRC. However, that acceptance is for that individual record alone and is not ablanket statement on all Trumpeter Swan reports in TN.For example, there have also been reports from TN of banded Trumpeter'sthat were tracked back to an ("re")introduced population from Ontario where (at least at the time) they were not considered "established".So personally, given that birds from "established" and "non- establihsed"populations appear to be visiting TN, I would say that unless you canclearly determine the origin of the bird and show that it is a wild- bornindividual from an "established" population, it would not be strictly "countable". In that way, it is much like the status of Mute Swan. Hopefully these("re")introduced populations of Trumpeter Swans won't become as big of anuisance species as the Mute Swans... though I think it may be heading that way. Of course there's the usual caveat that "countablility" is a nebulous subject and the above statement is just my personal opinion. You can "count" whatever you like on your own list and only need to concernyourself with ABA rules if you report your totals to ABA... which I don't,so someone else may wish to correct me. Dean Edwards Knoxville, TN
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