Jon P Erickson
20 Nov 2009
- Round Island
- -19.8546444 57.7842889
- 72 meters
- MARANTZ PMD 661
- Sennheiser MKH 20
- Telinga Parabola 54.7cm/15.5cm (21.5in/6.1in)
The birds are flying together and using the wind currents to engage in a variety of acrobatic maneuvers. They are commonly "pairing up": one bird following very closely behind another modeling the lead bird's maneuvers. It is more common that the paired birds are vocalizing, although the non-paired birds also occasionally vocalize. It is often unclear during the paired vocalizations which bird is making the call during the recording. NOTE: the taxonomic status of this population is currently unclear and under study. The common local name is Round Island Petrel.
LNS: 100Hz AUHipass filter applied to second and third segments in soundBlade.
LNS: Recording is from 1559-1630.