The layered meanings of silence....

From our friends at Wikepedia: The Kauaʻi ʻōʻō or ʻōʻōʻāʻā was a member of the ʻōʻō genus within the Mohoidae family of birds from the islands of Hawaiʻi. The entire family is now extinct. It was previously regarded as a member of the Australo-Pacific honeyeaters. This bird was endemic to the island of Kauaʻi. Click HERE to listen to the last male Kaua'i bird sing for his beloved who will never come. 

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I have so many questions:

What do our brains look like,
when they are formed in relation to bird song?

What happens to our brains
when they are not trained by bird song?

What will our brains look like,
our trees look like,
our cities...

look like?
in the

absence

of birds?
In the

absence
of song?

How can we hear
the voices of birds

that are no longer singing?
What does it mean to d/evolve?

How will this affect our psyches?
How will this affect our ears?

What will our

ears

look like?
When we no longer hear?