ML617716034
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Cerulean Warbler starts just before 0:04 (first part of song between 4-6 kHz and ending with the high buzz between 6-8 kHz).
Деталі спостереження
Singing high in hardwood canopy along the railroad tracks just north of W Queen St. (34°39'16.6"N 82°49'50.5"W https://maps.app.goo.gl/VPJ2n7boVkEVm4gFA?g_st=ic). By the sound of it, the bird was in a large, loose flock of warblers including mostly Yellow-rumped Warblers and at least one Cape May Warbler. It sang very frequently at times, with verses only separated by a second or two. Song a rapid, three-parted or two-parted buzzy stair-stepping sequence increasing in both pitch and "RPMs" with each part: "zowie-zowie-zowie-zi-zi-zi-zeeee" (ending on a high, almost inaudible buzz lacking a final downward "whup" like a Northern Parula almost always does). Occasionally the bird gave a two-parted version: "zoo-zoo-zoo-zeeee." The song was far too fast and "buzzy" (rather than "wheezy") for Black-throated Blue Warbler. I listened to the bird sing for about 15-20 minutes but never saw it. I obtained several distant but hopefully serviceable audio recordings that I will process and post. I use Merlin to make recordings, and only for corroboration of IDs when this is helpful; on the fourth or fifth recording, Merlin detected Cerulean Warbler (but only on this occasion despite minimal change in volume of the bird during the whole observation). The attached four audio clips were extracted from two different recordings (please see the media details with each recording for specific notes on the Cerulean song in each).
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