River otters hunt California birds

River otters in Northern California have been observed ambushing brown pelicans, drowning and predating on them at Abbotts Lagoon. Over a single season, researchers documented 73 pelican deaths, mainly younger birds, though the numbers are not considered to threaten the overall population. The attacks, believed to be rare occurrences, have led to pelicans avoiding the lagoon, and the behavior's spread and decline remain unclear.

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