ML 59621

AudioDateDownLeftRightUpCloseReportGallerySettingsGiftLanguageGridListMapMenuPhotoPlayPlusSearchStarUserVideo

Rufescent Screech-Owl -- Megascops ingens More
Audio »
More
Video »
Browse
species »
 

Age/Sex
Identification
Solicitation
Behavior
Note

 

 

Human Imitiation
Playback Self
 

song

 

 

Paul A Schwartz
7 Mar 1970 at 22:45

    Geography
  • Venezuela
    Mérida
    Locality
  • near La Azulita
    Latitude/Longitude
  • 8.72   -71.45
    Elevation
  • 1500 meters
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • NAGRA UNSPECIFIED IV
    Microphones
  • Electro-Voice 650
    Accessories
  • Parabola 91.4cm (36in)
    Equipment Note

NOTES: Neotropical Institute Cut # 11. Bulk reel: 55
139 tape.
Owls started singing ~ 10:30 PM and I began whistling imitation. Owls responded:
1) Two owls sing type B song. Quality: 2-3. Level: 0. 3.75 ips. Copied from original @ 7.5 & filt. 250/2.5 kHz.
Focus changes to one directly overhead. Quality: 1-2. Level: 0.
Then same bird apparently, now on a perch a little farther away, sings type A song. Quality: 2. Level: 0.
Then after playback of that, the bird, a little closer, sings type A song. Quality: 1-2. Level: 0.
This then continues with copy @ 7.5. Quality: 1-2. Level: 0.
Then some time after playback of the last part, bird sings type B song. (The last two songs repeated filtered 200/6 kHz.) Quality: 1-2. Level: 0. 7.5 ips.
Note: I heard three or four individuals in this area. The species seemed more active in this site than up at the 1800 m. site.
20/III/70 - No active song at 1500 m. in spite of clear sky and moon. One aroused by playback but did not react strongly.
21/III/70 - At 1400 m., no O. ingens but O. choliba sang.

Close Title