Hey, all. Here's an instructive 60 seconds of audio from earlier today on the grounds of the National Center for Atmospheric Research in Boulder Co.:
https://macaulaylibrary.org/asset/611273754
Key/legend:
0.2 sec.–several flight calls of type 5 red crossbills.
11.8 sec.–call notes of a pygmy nuthatch.
40.5 sec.–loud "toop" notes of type 2 red crossbills start.
-- https://macaulaylibrary.org/asset/611273754
Key/legend:
0.2 sec.–several flight calls of type 5 red crossbills.
11.8 sec.–call notes of a pygmy nuthatch.
40.5 sec.–loud "toop" notes of type 2 red crossbills start.
44.2 sec. (and elsewhere)–single call note of a hairy woodpecker. By coincidence, the woodpecker's call, the nuthatch's call, and the crossbill's "toop" are spectrograpically similar, differing primarily in the dominant, or "carrier," frequency. And for something really freaky, have you ever pondered the eerie convergence between the calls of the hairy woodpecker and the red phalarope? I kid you not: https://macaulaylibrary.org/asset/233143. If that were an actual red phalarope in the woods, would you ever know it?? But I digress...
47.2 sec.–flock of type 5 red crossbills starts to take off.
52.2 sec.–small flock of type 2 red crossbills starts to take off.
59.0 sec.–omnipresent pygmy nuthatches still going at it, and if you listen/look real carefully, a single "Rocky Mtns." white-breasted nuthatch. But a little birdie tells me it won't be called the white-breasted nuthatch for much longer . . .
Other goodies at NCAR this morning: northern pygmy-owl, eastern bluebird, and type 4 evening grosbeak. Here's the eBird checklist:
Other goodies at NCAR this morning: northern pygmy-owl, eastern bluebird, and type 4 evening grosbeak. Here's the eBird checklist:
Lafayette, Boulder Co.
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