ML 167470

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

6 Unknown  

100%

Sight and Sound

 

 

 

 

Jon P Erickson
3 Dec 2009 at 17:42

    Geography
  • Mauritius
    Locality
  • Round Island
    Latitude/Longitude
  • -19.8546444   57.7842889
    Elevation
  • 52 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

First segment: A single light morph bird is sitting in the area along with a juvenile bird. Two dark morph individuals are flying in the same clockwise pattern as described in recording #1132. They slow their motion as they approach the nest site and appear as if they are going to land without doing so. Eventually, both birds land at the nest site. The original light morph bird then flies off. Soon afterwards, one of the dark morph birds flies off. The additional petrels can be heard as they fly through the gorge in a clockwise pattern.
Second segment: A dark morph bird is sitting in the nesting area along with the juvenile. A second bird is sitting on a rock approx. 4 ft. away. It is unclear which bird is making the "grunting" type call in the recording.

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