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What's Inside a Woodpecker's Nest Hole?

Go outside this weekend and see a woodpecker hole for yourself!
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Pileated Woodpecker nest with parent and chicks
© Gregg Thompson

Many woodpeckers chisel out deep cavities in tree trunks in order to lay their eggs and raise their brood. The cavities hollowed out by the birds vary in size, depending on the species of woodpecker. The chamber of a tiny Downy Woodpecker descends about a foot from the opening, while the Pileated Woodpecker may chip out a chamber two feet deep. Both are beyond the reach of a pesky raccoon.

Most North American woodpeckers carve a new nest cavity each spring.

 

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BirdNote®

What's Inside a Woodpecker's Nest Hole?

Written by Bob Sundstrom

This is BirdNote.
[Downy Woodpecker excavating sounds https://macaulaylibrary.org/asset/107289]
A roughly circular hole, chiseled by a woodpecker into the face of a tree trunk, is not an unusual sight in nature. What is unusual is seeing what lies beyond the opening.
The hole leads to the interior of the tree, a passageway to the nesting chamber carved below. Inside this private space, layered with wood chips, a pair of woodpeckers will lay eggs and raise a brood.
The chamber must be carved deep enough to accommodate the growing family. Just as woodpecker species vary greatly in size, so do cavities. The chamber of a tiny Downy Woodpecker descends about a foot from the opening.
[Downy Woodpecker call, https://macaulaylibrary.org/asset/107281]

The crow-sized Pileated Woodpecker may chip out a chamber **two feet** deep. These birds usually breed only once each year and typically lay three to five eggs.
Most North American woodpeckers create a new cavity each spring. An aging trunk may reveal a long history of nest holes, deep lineages of woodpecker families. Go outside this weekend and see a woodpecker hole for yourself.
[Pileated Woodpecker drumming sounds https://macaulaylibrary.org/asset/190889]
For BirdNote, I’m Mary McCann.

Support for BirdNote comes from Audubon Park wild bird food. Owned by a bird-loving family for sixty years. Info on why bird feeding runs in families at audubonpark.com.

###
Bird sounds provided by The Macaulay Library of Natural Sounds at the Cornell Lab of Ornithology, Ithaca, New York. Recorded by Wil Hershberger and Francisco Rivas Fuenzalida.
BirdNote’s theme music was composed and played by Nancy Rumbel and John Kessler.
Producer: John Kessler
Managing Producer: Jason Saul
Associate Producer: Ellen Blackstone
© 2018 Tune In to Nature.org   April 2018   Narrator: Mary McCann

ID#       nest-09-2018-04-23  nest-09

Bob Sundstrom
Writer
Mary McCann
Narrator
Gregg Thompson
Photographer
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Tagsnesting woodpecker

Related Resources

What does a Downy Woodpecker’s nest cavity look like?Old, large, living trees must be left standing to protect nesting animals

More About These Birds

Pileated Woodpecker (Dryocopus pileatus)

Dryocopus pileatus

Downy Woodpecker (Picoides pubescens)

Picoides pubescens

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