The Merlin Bird ID app (free) has a tool that lets you Shazam bird songs! You just hold up your phone to record by sound ID and it will show which bird is singing. It’s so cool. I use it all the time.

Definitely don’t remember anything about water issues but it can also spread through food, so maybe unwashed produce or something?

If you remember which restaurants you ate at, you might be able to check the health dept for any other reports of similar issues: https://www.alleghenycounty.us/Health-Department/Programs/Food-Safety/Consumer-Alerts-and-Closures.aspx