ML 138145

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Gyrfalcon -- Falco rusticolus More
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Age/Sex
Identification
Solicitation
Behavior
Note

 

100%

Sight and Sound

 

Natural
 

mechanical sound

 

 

Brian J McCaffery
2 Jun 2007 at 00:00

    Geography
  • United States
    Alaska
    Locality
  • Ingakslugwat Hills
    Latitude/Longitude
  • 61.37   -161.9886
    Elevation
  • 170 meters
    Channels
  • Mono
    Sampling Rate
  • 48kHz
    Bit Depth
    Recorders
    Microphones
  • Sennheiser MKH 20
    Accessories
  • Telinga Parabola 54.7cm/15.5cm (21.5in/6.1in)
    Equipment Note

Female Gyrfalcon flew off from nest at 0:03. Chicks heard squealing briefly just before her take-off. Beginning at ~0:11, you can hear some faint chuffs, and then squeals resuming at 0:14--both chuffs and squeals are just-hatched young.

In the five plus hours prior to this take, the female was constantly shifting in the nest, plus was seen eating an egg-shell. Thus, these recordings occurred on the day of hatch. This take was also the first time all day that the young were actually heard, let alone recorded. Female flies back to nest at 0:25; chicks' squeals and chuffs heard after that point as well.

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