ML 3461

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Gadwall -- Anas strepera More
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call

emit alarm

 

 

Red-winged Blackbird -- Agelaius phoeniceus
Yellow-headed Blackbird -- Xanthocephalus xanthocephalus

Robert C Stein
Martin C Michener
11 Jun 1958 at 06:00

    Geography
  • United States
    North Dakota
    Locality
  • J. Clark Salyer II Nat. Wildlife Refuge
    Habitats
  • River
    Features
  • Island
No locations found with lat/long
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • MAGNEMITE UNSPECIFIED MODEL
    Microphones
    Accessories
  • Parabola 101.6cm (40in)
    Equipment Note

NOTES: ALARM (DECRESCENDO ?) OF FEMALE. DING ISLAND - IN IMPOUNDED RIVER. FEMALE(S)

[This recording begins with a decapitated example of the "decrescendo call" (0:05-0:07; following a "cryptic" stop-start and the recorder gaining speed), this followed by a series of "quacks" by a female (0:10-0:13), and finally, several "Burp Calls" by a male, the latter best described (and shown in Fig. I on page 491) by Cramp et al. (1977. Handbook of the birds of Europe, the Middle East, and North Africa: the birds of the Western Palearctic. Vol. 1. Oxford University Press, Oxford). It appears that most of these calls were given by birds in flight (associated with the whistling of the wings), though I suppose it is possible that the calling birds and the flying birds were not the same individuals [??] Quality changed from 2-3 to 2-3, 2 (the decrescendo call is decapitated and the level is low for the quacks, but the burp calls are relatively good) - CAM - 21 March 2005]

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