One willow warbler song, note by note: Scotland, April 27, 2019

Name: One willow warbler song, note by note: Scotland, April 27, 2019
Creator: Unlabeled
License: CC BY-SA 4.0 (the recording, as Wikimedia Commons states it); the note measurements and the clip by Unlabeled, offered under the same licence

16 notes tumble from 6.4 to 3.1 kHz in 2.6 seconds. They stretch from 40 ms at the start to 160 ms at note 9, then shorten to 25 ms at note 12.

What does this axis measure?

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y ↑: Pitch of the note (kHz)
x →: Note in the song (1 = first)
Given: Note length (ms)

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The data: 16 points

Note in the song (1 = first)	Pitch of the note (kHz)	Note length (ms)
1	6.367	40
2	5.966	55
3	4.392	70
4	4.642	75
5	4.12	135
6	4.243	110
7	4.221	115
8	3.841	140
9	4.462	160
10	4.135	60
11	3.141	55
12	3.217	25
13	2.952	55
14	3.832	35
15	4.194	50
16	3.112	40

Source: Recording XC468919 by Anthony Wetherhill on xeno-canto, via Wikimedia Commons; the notes' timing, length and pitch calculated by Unlabeled; the clip cut and re-encoded by Unlabeled
Licence: CC BY-SA 4.0 (the recording, as Wikimedia Commons states it); the note measurements and the clip by Unlabeled, offered under the same licence
Read: 2026-11-04
Drawn: 16 points as the puzzle showed them · scatter

Ran in puzzle #41 on November 6, 2026. Play it

One willow warbler song, note by note: Scotland, April 27, 2019

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