Scientists in Australia thought they had developed an innovative new tracking device to help them monitor magpies, but these crafty birds had other ideas.
source https://gizmodo.com/the-birds-outsmarted-us-magpies-help-each-other-remov-1848575846
source https://gizmodo.com/the-birds-outsmarted-us-magpies-help-each-other-remov-1848575846
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