Noun
bird song (uncountable)
Alternative spelling of birdsong
I think my great book is Born to Sing: An Interpretation and World Survey of Bird Song. Charles Hartshorne
Over increasingly large areas of the United States, spring now comes unheralded by the return of the birds, and the early mornings are strangely silent where once they were filled with the beauty of bird song. Rachel Carson
People listen to music with cavemen ears: Is it a bird song or the call of a lion? The audience at a musical is dancing in their hearts. Marsha Norman
It has given us time to take notice of the birds, bird song and clear blue skies. Source: Internet
Leonard Peyton, noted Alaskan bird bander and bird song recorder died on December 10, 2010 at the age of 86. He is the son of Sidney Peyton and Susie James Peyton of Fillmore California. Source: Internet
He discussed bird song recordings with Derek Jones in an August 1973 BBC Radio 4 programme called Sounds Natural. Source: Internet