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Cluster · rattle
Rattle complex.
Mechanical rattling vocalizations with weak harmonic structure. Frequent in affiliative and recruitment contexts. Highly individual.
v1 corpus · 2 CC-licensed recordings · AI narration available
AI interpretation · Rattle complex
The rattle is the strangest sound in the American crow repertoire — mechanical, almost prehistoric, weakly harmonic. Rattles appear in affiliative, recruitment, and occasionally territorial contexts; they're highly individual. Pairs and family groups seem to use them to signal something closer to mood than position. Two of our recordings sit here, both softer close-range exchanges. The acoustic geometry is unlike anything else in the crow's catalog — and unlike the calls of any other corvid species we've embedded. Spend time on this cluster, and you start to hear what makes American crows distinct.
Recordings in this cluster
2 exemplars, real spectrograms, full attribution.
2012-12-18
Corvus brachyrhynchos - American Crow XC115429
Rattle complex34 s · 200 Hz – 8 kHzCorvus brachyrhynchos - American Crow XC115429.mp3Soft rattling calls given at approximately 10m from microphone, and at least one 'coo' sound around 0:27.
2013-11-18
Corvus brachyrhynchos - American Crow XC155441
Rattle complex230 s · 200 Hz – 8 kHzCorvus brachyrhynchos - American Crow XC155441.mp3Calls from an autumn flock of approximately 50 birds in a urban park. In addition to the standard 'caw' calls, there are several rattles, and a few soft, doubled hooting calls (e.g. 0:58, 1:06, 3:31) from a bird directl
Behavioral-context probabilities
What happens when this cluster fires.
- Affiliative
- 45%
- Recruitment
- 25%
- Territorial
- 20%
- Other
- 10%
Probabilities are cluster-wide estimates from the behavioral-context classifier in the methods pipeline. Not per-clip — individual recordings sit somewhere within this distribution.
Frequently asked
What people ask about rattle complex.
- What is the rattle complex cluster?
- Mechanical rattling vocalizations with weak harmonic structure. Frequent in affiliative and recruitment contexts. Highly individual.
- How many rattle complex recordings does CrowLingo have?
- Crowlingo's v1 corpus contains 2 CC-licensed rattle complex recordings, sourced from Wikimedia Commons (Category: Audio files of Corvus brachyrhynchos).
- How does AI interpret the rattle complex cluster?
- The rattle is the strangest sound in the American crow repertoire — mechanical, almost prehistoric, weakly harmonic. Rattles appear in affiliative, recruitment, and occasionally territorial contexts; they're highly individual. Pairs and family groups seem to use them to signal something closer to mood than position. Two of our recordings sit here, both softer close-range exchanges. The acoustic geometry is unlike anything else in the crow's catalog — and unlike the calls of any other corvid species we've embedded. Spend time on this cluster, and you start to hear what makes American crows distinct.
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