--- a/net/minecraft/server/BlockTurtleEgg.java
+++ b/net/minecraft/server/BlockTurtleEgg.java
@@ -72,7 +72,7 @@
                         entityturtle.setAgeRaw(-24000);
                         entityturtle.g(blockposition);
                         entityturtle.setPositionRotation((double) blockposition.getX() + 0.3D + (double) j * 0.2D, (double) blockposition.getY(), (double) blockposition.getZ() + 0.3D, 0.0F, 0.0F);
-                        world.addEntity(entityturtle);
+                        world.addEntity(entityturtle, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.EGG); // CraftBukkit
                     }
                 }
             }