Table 1 Spectrogram measurements selected to compare the frequencies (Hz) of basic syllables comprising the different calls of Crested Guineafowl
| Â | Â | Alarm call | Staccato | Tonal syllable | Tremolo | Twit |
|---|---|---|---|---|---|---|
Frequency 95Â % | Number of exemplars (n) | 31 | 16 | 11 | 21 | 8 |
| Â | Number of months sampled | 13 | 9 | 3 | 5 | 5 |
| Â | Mean | 5965.79 | 7030.29 | 2411.53 | 5137 | 2584.68 |
| Â | SD | 1062.62 | 1488.71 | 616.26 | 1404.8 | 134.86 |
|  | Range | 4306–8441 | 4651–10335.9 | 1722–3273 | 3270–6718 | 2411.7–2756 |
Frequency 5Â % | Number of exemplars (n) | 31 | 16 | 11 | 21 | 8 |
| Â | Number of months sampled | 13 | 9 | 3 | 5 | 5 |
| Â | Mean | 1077.8 | 2239.07 | 1988.6 | 2012.31 | 1614.85 |
| Â | SD | 440.08 | 2775.48 | 2775.48 | 523.41 | 431.18 |
|  | Range | 172–1722 | 1033–2411.9 | 861–1032.6 | 1894–2756 | 861.3–2067.2 |
Frequency bandwidth | Number of exemplars (n) | 31 | 16 | 11 | 21 | 8 |
| Â | Number of months sampled | 13 | 9 | 3 | 5 | 5 |
| Â | Mean | 4942.81 | 5577.13 | 1268.36 | 3027.5 | 861 |
| Â | SD | 1017.4 | 1348.64 | 703.24 | 1146.66 | 263 |
|  | Range | 4942.81–1017.49 | 5577.13–1348.64 | 1268.36–703.24 | 3027.5–1146.66 | 516.8–1205.8 |
Rate (syllables /second) | Number of exemplars (n) | 10 | 21 | NA | 2 | 5 |
| Â | Number of months sampled | 8 | 10 | NA | 2 | 4 |
| Â | Mean | 1.33 | 22.81 | NA | 1.47 | 0.107 |
| Â | SD | 0.79 | 7.68 | NA | 0.38 | 0.034 |
|  | Range | 0.21–2.8 | 8–2.5 | NA | 1.2–1.75 | 0.064–0.142 |
Phrase size (syllables/bout) | Number of exemplars (n) | 23 | 18 | 11 | 1 | 8 |
| Â | Number of months sampled | 5 | 10 | 3 | 5 | 5 |
| Â | Mean | 6.18 | 8.35 | 1 | 1 | 1 |
| Â | SD | 4.15 | 2.6 | 0 | 0 | 0 |
|  | Range | 2–17 | 6–13 | 0 | 0 | 0 |