Furthermore, no Blue Jay kent-like [sic] have been found in the CLO Macaulay Library sound archives.I would disagree with that statement.
Listen to Catalog Number 13453 here (starting at about the 20 second mark) and see what you think.
Thursday, December 14, 2006
Blue Jay kent-like calls
In their tortuous treatment of kent-like calls in their recent report, CLO says:
Listen to Catalog Number 13453 here (starting at about the 20 second mark) and see what you think.
Listen to Catalog Number 13453 here (starting at about the 20 second mark) and see what you think.
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3 comments:
Indeed, having heard Jays Kenting away for a few minutes without any intervening Jaaayyaah's or "Queedles" here in the Northeast, that was my defining moment of skepticism regarding CLO's purported IBWO "kent" recordings. I nearly fell over when I heard the perfect pitch
"Kit-Kent" "Kent" "Kent"...
And another Jay joined in the fun
making only these kent sounds.
The recording you mentioned sounds a bit more nuthatch-like but we know Jays are
capable of raising their voices.
That said, the Hill sound recordings are somewhat better than
Cornell's or you could argue their Jays are more accomplished mimics.
Paul in upstate NY
CLO takes a different approach than Hill on this issue. Hill readily concedes the possibility of “kent-like” blue jay vocalizations, but rules out blue jay after determining that other more familiar blue jay vocalizations were not recorded in association with the any of his 210 putative IBWO vocalizations.
The CLO final report tells us that from 9,000 hours of audio, 16,000 targeted sounds were evaluated both spectrographically and aurally. Precisely one out of the sixteen thousand sounds matched expected IBWO vocalization as well as or better than it matched any other typical known animal vocalization. CLO does not share the sound file or the spectrographic characteristics for the single “high interest” sound so we don’t really know what caught their interest.
Last I knew there were white-tailed deer in Arkansas but apparently CLO was able to find at most one potential “kent/fawn bleat” thingy.
…just wanted to let you all know I still care…
pd
When all of your sound evidence consists of single sounds, rather than a series of sounds in the same context, you should approach them with great care. The fact is, nobody has a series. Either that or every series they do have ends up being identifiable as something other than IBWO.
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