Asio otus - Long eared owl - Gufo comune

Asio otus

RECORDING 1
DATE/TIME: 16/july/2005 (11.30 p.m.) - IDENTIFICATION AND BEHAVIOUR: The bird - not seen - is perched in a pine copse near the bank of the Orbetello lagoon - POSITION: Patanella copse near Orbetello lagoon, LAT.N 4227'/LONG.E 1113' - ALTITUDE: 0 m. - VOCALIZATION TYPE: call of a recently fledged young. - SEX/AGE: fledged young of unknown sex. - COMMENT: time interval between calls has been reduced in the spectrogram and the in the audio sample. True interval between calls = about 9 s. - MIC: (A)

RECORDING 2
DATE/TIME: 22/march/2003 (7 p.m.) - IDENTIFICATION AND BEHAVIOUR: One male - not seen - is perched far away in a wood surrounded by cultivated land. - POSITION: Poderone near Magliano in Toscana, LAT.N 4236'/LONG.E 1117' - ALTITUDE: +130 m. - VOCALIZATION TYPE: territorial call. - SEX/AGE: adult male. - COMMENT: The bird was far from the microphone, therefore the sound sample is amplified and filtered. - MIC: (A)

RECORDING 3
DATE/TIME: 10/july/2007 (11.30 p.m.) - IDENTIFICATION AND BEHAVIOUR: There are at least two recently fledged young in the copse. The female is patrolling her territory in flight. She calls several times. - POSITION: Patanella copse near Orbetello lagoon, LAT.N 4227'/LONG.E 1113' - ALTITUDE: 0 m. - VOCALIZATION TYPE: alarm calls in flight. - SEX/AGE: adult female. - COMMENT: The bird is probably alarmed by my presence. It flies two times over my head calling loudly. Time interval between calls has been reduced in the audio sample and in the spectrogram. True average interval: 11 s. (S.D. = 1.8; range = 8/12; n=4) - MIC: (P)

RECORDING 4
DATE/TIME: 10/july/2007 (11 p.m.) - IDENTIFICATION AND BEHAVIOUR: Same birds in the same place as above. - POSITION: Patanella copse near Orbetello lagoon, LAT.N 4227'/LONG.E 1113' - ALTITUDE: 0 m. - VOCALIZATION TYPE: calls of recently fledged youngs. - SEX/AGE: fledged young of unknown sex. - COMMENT: The young birds call almost continuously (background: Scops owl and crickets). Time interval between calls has been reduced in the spectrograms, but not in the audio sample. Average interval between calls: 2.8 s. (S.D. = 1.3; range = 0.8/6.4; n=47) - MIC: (P)


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