Add quail sound (CC0) by PrincessGrace...

https://freesound.org/s/329371/

README.md

@@ -55,6 +55,7 @@ As of right now, only sounds from *default* mod have been added.
 | [node_place*][default]       | Mito551                  | CC BY-SA 3.0 |                         |
 | [pencil_erase][]             | damsur                   | CC0          |                         |
 | [pencil_write][]             | NachtmahrTV              | CC0          |                         |
+| [quail][]                    | PrincessGrace            | CC0          |                         |
 | [sand_step.*][sand_step]     | worthahep88              | CC0          |                         |
 | [snow_step.*][snow_step]     | Ryding                   | CC0          |                         |
 | [step_hard.*][step_hard]     | Erdie                    | CC BY 3.0    |                         |
@@ -126,6 +127,7 @@ default.node_sound_dirt_defaults = sounds.node_dirt
 [metal_step]: https://freesound.org/s/398937/
 [pencil_erase]: https://freesound.org/s/443241/
 [pencil_write]: https://freesound.org/s/571800/
+[quail]: https://freesound.org/s/329371/
 [sand_step]: https://freesound.org/s/319224/
 [snow_step]: https://freesound.org/s/94337/
 [step_hard]: https://freesound.org/s/41579/

TODO.txt

@@ -41,7 +41,6 @@ TODO:
 	- toucan
 	- wolf
 	- coyote
-	- quail
 	- airplane
 	- car
 	- motorcycle

changelog.txt

@@ -13,6 +13,7 @@ next
 	- horse_neigh
 	- horse_snort
 	- pencil
+	- quail
 
 
 v1.1

main.lua

@@ -330,6 +330,14 @@ sounds.pencil = SoundGroup({
 	"pencil_write",
 })
 
+--- Quail sounds.
+--
+--  @sndgroup sounds.quail
+--  @snd quail
+sounds.quail = SoundGroup({
+	"quail",
+})
+
 sounds.node = {
 	["break"] = {
 		glass = SoundGroup({"glass_break"}),