Why Do Birds Sing? | Animal Science for Kids
Автор: SciShow Kids
Загружено: 2017-04-04
Просмотров: 253634
It's spring where Jessi and Squeaks lives, and that means the air is filled with the sounds of birds singing! But have you ever wondered why birds sing and who they're signing to?
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SOURCES:
Ackerman, Jennifer. The Genius of Birds.
http://sites.biology.duke.edu/nowicki...
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://academic.oup.com/beheco/artic...
http://www.bioone.org/doi/abs/10.2326...
https://www.allaboutbirds.org/guide/N...
http://bioweb.biology.utah.edu/yamagu...
https://www.researchgate.net/profile/...
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