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avian abuseMailOnline
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75% Informative
Study began in 2006 when Professor John Marzluff , an environmental scientist at the University of Washington , put on a scary mask and captured seven crows in a net.
He and his assistants would occasionally wear the mask in subsequent years as they walked around campus feeding the resident crows and recording their reaction.
On one occasion, he was subjected to aggressive 'scolding' caws from 47 out of 53 crows he encountered.
The number of aggressive caws started to fall until no scolding calls were logged at all during one walk in September 2023 - 17 years after the experiment began.
VR Score
73
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8
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English
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44
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possibly hateful
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