I would love this set up on a color e-ink picture frame at the cabin (and would be willing to pay as a software product!). Can it be made to prep once and then run fully offline indefinitely? Looks like mostly, except the wikipedia fetch. But that's only a few MB of text data that could easily be cached.
The Merlin App[0] created by Cornell works wonderfully for tracking bird calls. I like to sit by the river near my apartment and watch in realtime as the app updates while the birds are talking back-and-forth.
If you do start tracking birdcalls, I think you'll be surprised at how many you start hearing that you tuned out before.