There really are birds that have predator warning calls. Other animals even list... | Hacker News

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		rthomas6 on Oct 17, 2020 \| parent \| context \| favorite \| on: Experimental evidence for compositional syntax in ... There really are birds that have predator warning calls. Other animals even listen for them and hide when they hear them.

trgn on Oct 17, 2020 [–]

We can always tell when our neighbor's cat is outside when the birds in our yards start to get agitated.

dontcarethrow2 on Oct 17, 2020 | [–]

I've noticed the warning call differs at times, I hear two chirps for land based predator and three for air. Small sample size, city finches.

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