Lost my chirping birds wake up for the alarm clock. What happened?

Was your “chirping birds” alarm associated with the Bedtime Alarm feature of your iPad - and/or did the alarm coincide with update of your iPad to iPadOS14?

With release of iPadOS14, Bedtime, as previously accessed from the iPad Clock App, is no longer an element of iPadOS.  For iPhone, the equivalent Bedtime function has been relocated to the Health App (this, of itself, is not present on iPad).

Apple do invite constructive feedback and feature requests via their product feedback portal:

Feedback - iPad - Apple

Hi there Nocommotion,

We understand you're experiencing an issue with wanting to use a different alarm sound on your iPad, and we'd like to help point you in the right direction.

Get started here: Set an alarm on iPad

If you'd like to provide feedback regarding this, you can do so here: Product Feedback

Cheers!

Sorry, it is not possible to restore an earlier version of iPadOS.