Typed note on lined page titled, ‘Bird Song’. Re the biological make up of a bird’s throat and how the bird song sound is made. Number ‘3’ handwritten…

Typed note on lined page titled, ‘Bird Song’. Re the biological make up of a bird’s throat and how the bird song sound is made. Number ‘3’ handwritten…

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Typed note on lined page titled, 'Bird Song'. Re the biological make up of a bird's throat and how the bird song sound is made. Number '3' handwritten and circled on both top corners. 'W? Fowler' handwritten on page.

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