Cup-shaped nests of song thrush are lined with wood pulp because it hardens into a protective, cardboard-like material.

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References

"The song-thrush (Turdus philomelos) lines its nest cup with rotting wood fibres, which creates a kind of a pulp that hardens into a cardboard-like material." (Pallasmaa 1995:20)

Book
Animal ArchitectureApril 22, 2014
Ingo Arndt

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Living System/s

Organism
Song ThrushTurdus philomelosSpecies

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