A bird whistle that you fill with water to make a warble bird whistle.

Original whistle by AdamStag: https://www.thingiverse.com/thing:1155687

Remixed by ArtistciMusician: https://www.thingiverse.com/thing:5405003

Then remixed again by me to add internal geometry to increase the warble effect when filled with water.

After printing, partially fill with water under the tap and blow on the tail to hear bird chirping!

If you're having trouble getting it to warble, try using a little bit less water and/or blow a little harder. It can also help to tilt the whistle backward slightly.

The first file is the original and is better at warbling when filled with water, but might not whistle very loudly. The “now with more whistle!” file will whistle better, but it may be harder to get it to warble.

Learn more about warble whistles in this video by Steve Mould:

I printed this with a 0.4mm nozzle, 2 perimeters, 0.2mm layer height. No supports are needed if you have good part cooling.