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Old and New Memories of Black-capped Chickadees

November 15, 2017
Their brains grow in late summer and early fall!
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Black-capped Chickadee with seed Expand Image
© Mike Hamilton

Fernando Nottebohm of Rockefeller University studies the growth of neurons in the brains of birds. He’s an expert in the remarkable ability of Black-capped Chickadees to recall the locations of hundreds of stored seeds. Dr. Nottebohm suggests that as demand for memory space peaks, chickadees discard cells that hold “old” memories and replace them with new cells that store fresh memories. Perhaps we should reconsider how we use the term “bird brain!”

Today’s show brought to you by Forterra, saving the places that are keystones of a sustainable future in the Pacific Northwest.

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BirdNote®

Old and New Memories of Black-capped Chickadees

Written by Todd Peterson and Frances Wood

This is BirdNote.

[Calls of Black-capped Chickadee]

The brains of chickadees grow in the late summer and early fall. At this time of year the birds cache food, usually seeds, throughout their home range. Come winter, they need to be able to find what they’ve stashed. The growing part of the brain is the hippocampus, which plays an important role in spatial memory. 

Dr. Fernando Nottebohm of Rockefeller University in New York studies the growth of neurons in the brains of birds. He focused on the remarkable ability of Black-capped Chickadees to recall the locations of hundreds of stored seeds. His lab produced the first evidence that in the adult brain of birds neurons are replaced periodically, with the learning of new behaviors. 

[Chatter of Black-capped Chickadee]

Dr. Nottebohm suggests that as demand for memory space peaks, chickadees discard cells that hold “old” memories and replace them with new cells that store fresh memories.

Studying the ability of a bird’s brain to generate new neurons might uncover ways to replace brain cells lost due to injury, stroke or degeneration, as happens in diseases such as Parkinson’s, Huntington’s and Alzheimer’s.

 Perhaps we should reconsider how we use the term “bird brain.”

[Song of Black-capped Chickadee]

For BirdNote I’m Michael Stein. Did you hear a fact on today's BirdNote you'd like to follow up on? You can read all the scripts at birdnote.org.

###

Bird sounds provided by The Macaulay Library of Natural Sounds at the Cornell Lab of Ornithology, Ithaca, New York. Call of Black-capped Chickadee [106942] recorded by R.S. Little; chatter of Black-capped Chickadees [117803] recorded by S.R. Pantle; song of Black-capped Chickadee [105762] recorded by G.A. Keller.

Ambient recorded by C. Peterson.

BirdNote’s theme music was composed and played by Nancy Rumbel and John Kessler.

Producer: John Kessler

Executive Producer: Chris Peterson

© 2013 Tune In to Nature.org  November 2017  Narrator: Michael Stein

ID# BCCH-07-2013-11-05 BCCH-07

Todd Peterson
Writer
Frances Wood
Writer
Michael Stein
Narrator
Mike Hamilton
Photographer
Tags: science

Related Resources

Learn more about Dr. Nottebohm's researchBlack-capped Chickadee - More at All About Birds

More About These Birds

Black-capped Chickadee (Poecile atricapillus)

Poecile atricapillus

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