ML 74645

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Reunion Harrier -- Circus maillardi More
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Jennifer F. M. Horne
14 Dec 1974 at 00:00

    Geography
  • Réunion
    Locality
  • 665.0 km SE of Madagascar; 164 KM SW Mauritius; Ravine de la Grande
    Latitude/Longitude
  • -20.4666667   55.45
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • STELLAVOX SP7
    Microphones
    Accessories
    Equipment Note

NOTES: (CAT NO. 74645, PART A: Time: 0800-0900. Bkground Sounds: Wind, vehicles, aircraft. No. of Animals/Sex: 6 adults, 3 males, 3 females, 1 immature [sex not specified]. Breeding Status: Territorial paired, breeding. Sound Category: Call. Stimulus for Sound: natural (no playback). Behav. Context: Advertising. Field Recorder: Stellavox Sp. 7. Cut Length: 11:41.) HPR 250 Hz. Many of these sequences of calls are in BLOWS LONDON. Dr. Clouet annotates the locality. he worked extensively on this sp.l There were up to 5 pairs that regularly displayed in this "Ravine" area. There were 3 "pairs" present this morning and a sub-adult that called ("mew"-call) frequently. The female utters more "mew" calls than the male. The male utters a short chip call as he does a "rolling" display with each roll. At the top or head of the rolll, he gave a chip call. The "Oh, boy" is uttered as a male does a complete rollover display. The displaying occurred at a very precise time each morning.
CAT NO. 74645, PART B: Time: 0800-0900. Bkground Sounds: Wind, vehicles, aircraft. No. of Animals/Sex: 6 adults, 3 males, 3 females, 1 immature [sex not specified]. Breeding Status: Territorial paired, breeding. Sound Category: Call. Stimulus for Sound: natural (no playback). Behav. Context: Advertising. Field Recorder: Stellavox Sp. 7. Cut Length: 03:25.) Part B Starts with "a male displaying." (a female whistle-mew follows). (The subadult was most vocal with the "mew" on both part A & B.) the female was flying up the Ravine. Cut ends with male displaying. Paper on vocalizations. See my sonograms in Studies of Mascarene Island Birds, ed. A.W. Diamond, Cambridge/BOU in the LNS Library. [HPR 250 Hz.]

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