ML 20869

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Spotted Owl -- Strix occidentalis More
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Age/Sex
Identification
Solicitation
Behavior
Note

1 Adult Female
1 Adult Male  

Uncertain

Sight and Sound

 

Playback Self
 

call

song

advertise

mate

 

Sound stimulation was (other): playbk owl species, see notes.  

Virginia Huber
Randolph S Little
22 May 1977 at 03:15

    Geography
  • United States
    Arizona
    Locality
  • 1.0 km N of Chiricahua Mountains; Portal; Sulphur Draw
    Habitats
  • Forest
  • Coniferous Forest
  • Deciduous Forest
    Features
  • Thicket/Brush
  • Canyon
  • Rocky
No locations found with lat/long
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • NAGRA IV-D
    Microphones
  • Sennheiser MKH 404
    Accessories
  • Dan Gibson Parabola 45.7cm/11cm (18in/4.3in)
    Equipment Note

NOTES: (Species Sound: Intermittent. Breeding Status: Territorial paired. Stimulus for Sound: Playback Bubo virginianus and "Pygmy Owl." Behav. Context: Arrival? Frequency of Sound: High. Gen. Climate: Arid. Cover Density: Sparse. Strata: Song perch.) the recorder was stopped and started sesveral times to facilitate playback (and subsequent imprfoved reception) to lure the owls closer to the recorder.
Part A: 10:25
Part B: 3:47

ML Notes: One call that is heard throughout the recording by probably both the male and female is the "Four-note Location Call" (hoo hoo-hoo hooo), as described in the BNA. Note that the recordist mentions in his recording that the lower-pitched sound is probably from the female, but according to the BNA, females consistently have higher-pitched calls. Later on, the Four-note Location Call seems to change to an "Agitated Location Call", similar the the call mentioned above, except that the last note is replaced by "ow! " (i.e. hoo hoo-hoo ow!) Other calls heard in the recording include the Contact Call which is described in the BNA as a hollow whistle ending in an upward inflection and phoneticized as coo-weep!) These Contact Calls may possibly evolve into "Agitated Contact Calls). The recording may also include several barks which the BNA phoneticizes as ow!-ow!-ow!-ow!-ow! or yenk!-yenk!-yenk!-yenk! CZ 13/01/2004.

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