diff --git a/groups/animal.lua b/groups/animal.lua
index ec3dbc7..6a430e8 100644
--- a/groups/animal.lua
+++ b/groups/animal.lua
@@ -447,8 +447,12 @@ sounds.goose = iSoundGroup({
 
 --- @sndgroup sounds.loon
 --  @snd loon_01
+--  @snd loon_02
+--  @snd loon_03
 sounds.loon = iSoundGroup({
 	"loon_01",
+	"loon_02",
+	"loon_03",
 })
 
 --- @sndgroup sounds.owl
diff --git a/sounds/sounds_loon_02.ogg b/sounds/sounds_loon_02.ogg
new file mode 100644
index 0000000..1872ba9
Binary files /dev/null and b/sounds/sounds_loon_02.ogg differ
diff --git a/sounds/sounds_loon_03.ogg b/sounds/sounds_loon_03.ogg
new file mode 100644
index 0000000..368e994
Binary files /dev/null and b/sounds/sounds_loon_03.ogg differ
diff --git a/sounds_src/sounds_loon_02.flac b/sounds_src/sounds_loon_02.flac
new file mode 100644
index 0000000..0d05836
Binary files /dev/null and b/sounds_src/sounds_loon_02.flac differ
diff --git a/sounds_src/sounds_loon_03.flac b/sounds_src/sounds_loon_03.flac
new file mode 100644
index 0000000..3bbea9e
Binary files /dev/null and b/sounds_src/sounds_loon_03.flac differ
diff --git a/sources.md b/sources.md
index 7a4a9ba..050c1e9 100644
--- a/sources.md
+++ b/sources.md
@@ -118,6 +118,7 @@
 | [leopard*][leopard]               | Ian Fairley                  | CC BY        |                          |
 | [lion_bellow][]                   | felix.blume                  | CC0          |                          |
 | [loon_01][]                       | Jonathon Jongsma             | CC BY-SA 3.0 |                          |
+| [loon_[02-03]][loon_02]           | Jonathon Jongsma             | CC BY-SA 3.0 |                          |
 | [match_ignite][]                  | Jonathan Shaw (InspectorJ)   | CC BY 3.0    |                          |
 | [melee_hit][]*                    | CGEffex                      | CC BY 3.0    | [OpenGameArt][oga.29445] |
 | [monkey*][monkey]                 | AntumDeluge                  | CC0          | imitation                |
@@ -378,6 +379,7 @@
 [leopard]: https://www.youtube.com/watch?v=VFsHjBbrebk
 [lion_bellow]: https://freesound.org/s/405211/
 [loon_01]: https://www.xeno-canto.org/139388
+[loon_02]: https://www.xeno-canto.org/139387
 [match_ignite]: https://freesound.org/s/484266/
 [melee_hit]: https://freesound.org/s/98341/
 [monkey]: https://opengameart.org/node/81240