Does a Robin Hear Its Worm?

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How does a robin know a worm is in a single precise spot? Does it see the worm or hear it? Odor it? Sense its actions by way of its ft? To seek out the reply, researchers buried worms in soil in a tray. They coated the soil with a skinny however opaque sheet of cardboard, adopted by extra soil, so the robin couldn’t see the worms. Nonetheless, the robin discovered them with ease. The scientists concluded the birds are listening for his or her prey. There’s at all times extra to find out about birds!

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BirdNote®

Does a Robin Hear Its Worm?

Written by Bob Sundstrom

That is BirdNote.
[American Robin call]
As a robin hops throughout a garden or backyard, it cocks its head to 1 facet after which the opposite. A second later, it jabs its yellow beak to the earth and comes up with an earthworm.
[American Robin call, https://search.macaulaylibrary.org/catalog?taxonCode=amerob&behaviors=c…, 0.09-.10]
How did the robin know a worm was in that precise spot? Did it see the worm or hear it? Odor it? Or sense its actions by way of its ft? 
[American Robin call, http://macaulaylibrary.org/audio/133356, 0.41-.45]                        
Experiments with captive robins first decided the birds weren’t smelling worms or sensing their vibrations. So the birds should have been seeing or listening to them, proper? To be taught extra, researchers buried worms in soil in a tray. They coated the soil with a skinny however opaque sheet of cardboard, adopted by extra soil, making it inconceivable for a robin to see the worms. Nonetheless, the robin successfully discovered the worms!
[American Robin call, https://search.macaulaylibrary.org/catalog?taxonCode=amerob&behaviors=c…, 0.09-.10]
The scientists concluded that robins are efficiently listening for his or her prey, even when they’ll’t see, scent or really feel it. [American Robin song, http://macaulaylibrary.org/audio/168300, 0.7-.11]
For BirdNote, I’m Mary McCann.
[American Robin song, http://macaulaylibrary.org/audio/168300, 0.7-.11]
Should you ever miss a BirdNote, you’ll be able to at all times get the newest episode. Simply inform your sensible speaker, “Play the podcast BirdNote.” Be taught extra on our web site, BirdNote.org.
                                                             ###
Producer: John Kessler
Govt Producer: Sallie Bodie
Editor: Ashley Ahearn
Producer: Mark Bramhill
Affiliate Producer: Ellen Blackstone
Bird sounds supplied by The Macaulay Library of Pure Sounds on the Cornell Lab of Ornithology, Ithaca, New York. ML133356 AMRO  Recordist G Keller, 0:05 – 1:10. ML168300 AMRO  Recordist W Hershberger, 1:10 – finish.
BirdNote’s theme was composed and performed by Nancy Rumbel and John Kessler.
© 2020 BirdNote   August  2020 / July 2022 Narrator: Mary McCann

ID# AMRO-18-2020-08-20            AMRO-18
Supply: http://web2.uwindsor.ca/programs/biology/dmennill/360/article.pdf
http://www.loe.org/exhibits/segments.html?programID=13-P13-00018&segmentID…
https://www.lib.montana.edu/acoustic-atlas/acoustic-atlas-blog/posts/ca…

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