ML 26429


Sora -- Porzana carolina More
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1 Juvenile
1 Adult  


Sight and Sound




Social context: family

care for young

establish parent young contact



Susan E Cosens
5 Jul 1979 at 19:00

  • Canada
  • 3.0 km W of Delta
  • 50.0166667   -98.0333333
  • Wetland
  • Freshwater
  • Mono
    Sampling Rate
    Bit Depth
  • UHER REPORT 4200
    Equipment Note

NOTES: (Species Sound: Frequent. Breeding Status: Territorial paired, breeding. Gen. Climate: Dry. Gen. Habitat: Bordering deciduous ridge. Cover Density: Thick.)

Calls of nestlings are soft and wheezy. Nestlings are one to several days of age; all eggs in nest had not hatched. (One nestling seen at nest.) There were two adults at nest, but only one can be heard calling at any time. Identity of male or female not possible. Last series of calls from possibly agitated bird. Long-tailed Weasel had been in vicinity of nest, but I don't know whether calls and presence of weasel are related. (Caller away from nest).
Microphone at nest.

BNA: Wheezy "peep" or "queea" calls are heard from chicks. The adult calls heard may be"tug" calls which occurs when mates bring food, or a sharp "quink-quink-quink" or kuk-kuk" call if birds are disturbed at the nest. I'm not sure which of these is heard. CZ 17/02/2004.

[I suspect the vocalizations in the first part of this recording represent the "tug" calls by an adult given in combination with the soft, "queea" calls by the young. The calls in the second part appear to be given almost exclusively by the adults and they appear to represent the soft, "tug" calls (which are probably the same as coot-like calls). Note also that these calls grade back-and-forth between softer, more nasal renditions and sharper, more tick-like versions. There are a few soft peeps at the end of this part given by the young. There is a "whinny" given by a bird in the background at 5:10. The third part contains soft "queea" calls by the chicks (8:29-10:14). The fourth part combines the adult calls with those of Agelaius phoeniceus (the blackbird calls being more prominent here). The wheezy "queea" calls at 15:00-16:30 were apparently given by the nestling, these alternating between "tug" calls given by the adult. The vocalizations in the last two parts appear to represent an undescribed call (16:53-21:58), unless this is the shrill "quee" given by chicks when alarmed (also provided they were not given by a coot, though I have little doubt that they were given by a rail of some type) [??] Quality 2-1, 2-3 (quality varies considerably in the different parts - BEST parts at 3:35-8:03, 18:35-19:28, and 20:43-22:00 - the calls of the chicks are generally quite weak) - CAM - 13 April 2005]

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