I'm doing my best to avoid the "Sound ID" trap while birding. As I've
seen recently, all (seems like all) warblers & sparrows have a call
that looks like a line on the spectrogram. i.e. it lasts a very short
amount of time, and encompasses the majority of the frequency range.
While at Walden Ponds last weekend I had one recording (of one bird)
that was "IDed" as a MGWA, COYE, YRWA, SOSP, and CCSP. I got eyes on
the birds and it was a Wilson's Warbler (which, honestly, was the best
possible outcome). So, yes, Merlin tries it's best, but is often
faulty.
Van Rudd
Louisville, CO
On Tue, Sep 13, 2022 at 3:37 PM Charles Hundertmark
<chundertmark8@gmail.com> wrote:
>
> Unfortunately, some birders don't realize they are getting multiple suggestions for one bird, and instead list all of them as species on their eBird reports. This is going to require careful scrutiny, good judgement and delicate communication on the part of reviewers.
>
> Chuck Hundertmark
> Lafayette, CO
>
> On Sep 13, 2022, at 2:58 PM, David Suddjian <dsuddjian@gmail.com> wrote:
>
> This is not a Merlin gripe, but just a funny experience from this morning at Deer Creek.
>
> Were I to follow the magician's lead, I had an unprecedented collection of vireos in one spot today near Deer Creek in JeffCo. It's fun anytime you have singing vireos in the fall, as some species do, making it easier to detect them,... if not to view them, But to have five different species singing in one tree in September is virtually unprecedented. Sadly, virtual was all it was.
>
> https://ebird.org/checklist/S118667599
>
> There WERE two Plumbeous Vireos singing near to each other, as you can hear on the recording on the checklist. One was much closer to me, and is louder. And there WAS a Cassin's Vireo nearby, but it was silent for Merlin during my encounter. So that is two species. And while Merlin identified my prominent singing PLVI correctly sometimes, but also variously as a Cassin's, a Yellow-throated, a Red-eyed and a Black-whiskered Vireo. Hey, there's one new state bird in there!! All those were its proposed IDs for the one singing PLVI. Let the user beware for all rare bird reports via dear Merlin. This we know. Personally I can relate, as I have a hard time telling the song of the PLVI from that of the CAVI.
>
> At the same location last week Merlin reported a Water Rail. A Water Rail?!
>
> David Suddjian
> Ken Caryl Valley
> Littleton CO
>
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