Table 1 Descriptive statistics of analysed characteristics of Tambourine Dove song
Variable | Mean | SD | Min‒Max | CVi | CVb | PIC |
|---|---|---|---|---|---|---|
Number of notes | 30.4 | 6.78 | 12‒59 | 37.0 | 21.1 | 0.57 |
Duration (s) | 13.8 | 2.33 | 7.3‒36.2 | 27.5 | 16.0 | 0.58 |
Peak frequency (Hz) | 432 | 25.4 | 280‒600 | 4.0 | 5.3 | 1.34 |
Minimum frequency (Hz) | 416 | 31.5 | 280‒490 | 11.2 | 5.7 | 0.51 |
Maximum frequency (Hz) | 473 | 48.1 | 420‒980 | 16.8 | 5.8 | 0.35 |
Peak frequency of notes (Hz) | ||||||
Note 1 | 462 | 26.6 | 350‒600 | 15.3 | 1.6 | 0.10 |
Note 2 | 456 | 27.8 | 300‒530 | 12.6 | 2.0 | 0.15 |
Note 3 | 452 | 27.6 | 420‒530 | 9.8 | 1.1 | 0.12 |
Note 4 | 451 | 33.9 | 300‒580 | 14.3 | 2.7 | 0.19 |
Note 5 | 453 | 36.5 | 300‒580 | 14.5 | 2.5 | 0.17 |
Note 6 | 444 | 29.9 | 300‒530 | 11.8 | 1.9 | 0.16 |
Note 7 | 437 | 30.2 | 300‒510 | 12.0 | 2.3 | 0.19 |
Note 8 | 433 | 29.0 | 300‒510 | 9.8 | 2.6 | 0.27 |
Note 9 | 432 | 28.4 | 320‒510 | 7.9 | 2.3 | 0.29 |
Note 10 | 432 | 32.0 | 280‒530 | 15.5 | 3.8 | 0.24 |
Note 11 | 430 | 28.5 | 280‒510 | 9.1 | 1.8 | 0.20 |
Note 12 | 429 | 28.5 | 390‒510 | 5.2 | 1.1 | 0.22 |
Note-to-note duration (s) | ||||||
NtN1–2 | 1.05 | 0.375 | 0.11‒5.54 | 135.8 | 24.0 | 0.18 |
NtN2–3 | 1.76 | 0.438 | 0.11‒4.96 | 99.2 | 15.3 | 0.15 |
NtN3–4 | 1.23 | 0.434 | 0.15‒5.34 | 168.7 | 19.0 | 0.11 |
NtN4–5 | 0.45 | 0.555 | 0.11‒7.75 | 442.2 | 60.9 | 0.14 |
NtN5–6 | 0.93 | 0.522 | 0.03‒2.33 | 192.5 | 27.1 | 0.14 |
NtN6–7 | 1.36 | 0.666 | 0.10‒2.40 | 197.1 | 19.6 | 0.10 |
NtN7–8 | 0.56 | 0.346 | 0.06‒2.33 | 208.7 | 32.4 | 0.15 |
NtN8–9 | 0.53 | 0.299 | 0.03‒1.86 | 238.2 | 26.6 | 0.11 |
NtN9–10 | 0.66 | 0.429 | 0.05‒1.87 | 278.3 | 23.8 | 0.09 |
NtN10–11 | 0.4 | 0.272 | 0.07‒1.23 | 348.0 | 23.7 | 0.07 |
NtN11–12 | 0.43 | 0.224 | 0.07‒1.99 | 251.4 | 21.6 | 0.09 |
NtN12–13 | 0.43 | 0.180 | 0.08‒0.99 | 197.6 | 15.2 | 0.08 |