[identity profile] urbpan.livejournal.com 2009-03-24 04:33 pm (UTC)(link)
One of them saw a vulnerability, or for some other reason got it in its head to kill the robin. Then it became "MINE!"
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[identity profile] perspicuity.livejournal.com 2009-03-24 06:05 pm (UTC)(link)
i have seen a "murder of crows" assault a squirrel, knocking it out of a tree, pinned it to the ground, and then they mobbed, and turned it into furry sushi morsels. kinda ... creepy.

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