diff --git a/README.md b/README.md
index 46b27de..7ceec49 100644
--- a/README.md
+++ b/README.md
@@ -22,5 +22,6 @@ released under the MIT license.
     * vinyl crackle
     * white noise?
     * fan
+    * birdsong
 * set a window icon
     * create a nice icon?