Table 4.

Acoustic parameters. Acronyms and definitions for measurements are given in the text.

Settings	Call type	n		F start (kHz)	F maxE (kHz)	F end (kHz)	T dur (ms)	PI (ms)	BW (kHz)
Flight tent	FM	4	Mean ± SD Min–max	66.8 ± 7.8 59.6–77.2	39.0 ± 2.3 36.5–41.4	32.8 ± 2.1 29.9–34.9	2.7 ± 1.5 1.5–4.8	69.5 ± 27.5 37.6–103.0	34.0 ± 8.7 24.7–43.9
Hand release	FMQCF	9	Mean ± SD Min–max	61.8 ± 7.8 51.1–72.4	34.6 ± 1.7 33.1–38.1	31.2 ± 1.4 29.4–33.4	6.4 ± 2.1 2.2–8.0	90.3 ± 10.8 71.6–107.0	30.7 ± 7.5 20.7–41.8
Free-flying	FMQCF	8	Mean ± SD Min–max	42.4 ± 4.5 36.3–50.0	30.5 ± 0.7 29.5–31.4	28.8 ± 0.9 27.4–29.6	11.8 ± 1.6 10.0–14.6	158.4 ± 36.9 93.3–187.0	13.6 ± 3.9 8.8–20.4
Free-flying	QCF	4	Mean ± SD Min–max	32.2 ± 1.3 30.4–33.4	28.3 ± 0.6 27.5–28.7	26.7 ± 0.8 25.8–27.8	13.3 ± 2.1 11.3–16.0	199.8 ± 36.2 175.6–253.6	5.5 ± 1.0 4.6–6.8