Great tits are killing birds and eating their brains. Climate change may be to blame.

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According to (This article and its images were originally posted on Popular Science January 10, 2019 at 03:03PM.)

Every year, little black-and-white birds called pied flycatchers make the lengthy trek from sub-saharan Africa to northern Europe to feast on caterpillars, claim a nest, and have babies. This typically goes off without a hitch, and the birds return to Africa a few months later, offspring in tow. But recently, some flycatchers have arrived to find their nesting sites occupied by haughty, territorial great tits. And those birds don’t just chase flycatchers away—they brutally attack them, kill them, and eat their brains.

The reason for such grisly bird murders might be due to a shift in migration and nesting timelines for both birds, according to a new study published Thursday in Current Biology. While great tits typically breed two weeks earlier than pied flycatchers, their breeding periods now occasionally overlap due to climate change-related factors, the authors say.

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This article and images were originally posted on [Popular Science] January 10, 2019 at 03:03PM. Credit to the original author and Popular Science | ESIST.T>G>S Recommended Articles Of The Day.

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