ML 167433

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Pterodroma sp. -- Pterodroma sp. More
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Age/Sex
Identification
Solicitation
Behavior
Note

20 Unknown  

100%

Sight and Sound

 

 

 

 

Jon P Erickson
20 Nov 2009 at 15:59

    Geography
  • Mauritius
    Locality
  • Round Island
    Latitude/Longitude
  • -19.8546444   57.7842889
    Elevation
  • 72 meters
    Channels
  • Mono
    Sampling Rate
  • 48kHz
    Bit Depth
  • 24-bit
    Recorders
  • MARANTZ PMD 661
    Microphones
  • Sennheiser MKH 20
    Accessories
  • Telinga Parabola 54.7cm/15.5cm (21.5in/6.1in)
    Equipment Note

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.

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