diff --git a/source/behavior/entities/format/behaviors/avoid_block.json b/source/behavior/entities/format/behaviors/avoid_block.json
index 2bf786b2..da78ada7 100644
--- a/source/behavior/entities/format/behaviors/avoid_block.json
+++ b/source/behavior/entities/format/behaviors/avoid_block.json
@@ -15,23 +15,27 @@
     "search_range": {
       "type": "integer",
       "title": "Search Range",
-      "description": "Maximum distance to look for a block in xz."
+      "description": "Maximum distance to look for a block in xz.",
+      "default": 0
     },
     "search_height": {
       "type": "integer",
       "title": "Search Height",
-      "description": "Maximum distance to look for a block in y."
+      "description": "Maximum distance to look for a block in y.",
+      "default": 0
     },
     "sprint_speed_modifier": {
       "type": "number",
       "title": "Sprint Speed Modifier",
-      "description": "Modifier for sprint speed. 1.0 means keep the regular speed, while higher numbers make the sprint speed faster."
+      "description": "Modifier for sprint speed. 1.0 means keep the regular speed, while higher numbers make the sprint speed faster.",
+      "default": 1.0
     },
     "target_selection_method": {
       "type": "string",
       "title": "Target Selection Method",
       "description": "Block search method.",
-      "enum": ["random", "nearest"]
+      "enum": ["random", "nearest"],
+      "default": "nearest"
     },
     "target_blocks": {
       "type": "array",
@@ -68,7 +72,8 @@
           "items": [
             { "type": "number", "title": "Maximum" },
             { "type": "number", "title": "Maximum" }
-          ]
+          ],
+          "default": [3.0, 8.0]
         },
         { "type": "number" },
         {
diff --git a/source/behavior/entities/format/behaviors/celebrate.json b/source/behavior/entities/format/behaviors/celebrate.json
index a7e9052d..25071137 100644
--- a/source/behavior/entities/format/behaviors/celebrate.json
+++ b/source/behavior/entities/format/behaviors/celebrate.json
@@ -59,7 +59,7 @@
       "title": "On Celebration End Event"
     },
     "sound_interval": {
-      "default": 0,
+      "default": [2, 7],
       "description": "Minimum and maximum time between sound events (positive, in seconds).",
       "title": "Sound Interval",
       "$ref": "../types/range_number_type.json"
diff --git a/source/behavior/entities/format/behaviors/celebrate_survive.json b/source/behavior/entities/format/behaviors/celebrate_survive.json
index 306c8ff8..a1ffb585 100644
--- a/source/behavior/entities/format/behaviors/celebrate_survive.json
+++ b/source/behavior/entities/format/behaviors/celebrate_survive.json
@@ -10,12 +10,14 @@
     "fireworks_interval": {
       "title": "Fireworks Interval",
       "$ref": "../types/range_number_type.json",
-      "description": "Minimum and maximum time between firework (positive, in seconds)."
+      "description": "Minimum and maximum time between firework (positive, in seconds).",
+      "default": [10, 20]
     },
     "duration": {
       "title": "Duration",
       "description": "The duration in seconds that the celebration lasts for.",
-      "type": "number"
+      "type": "number",
+      "default": 30.0
     },
     "on_celebration_end_event": {
       "title": "On Celebration End Event",
diff --git a/source/behavior/entities/format/behaviors/circle_around_anchor.json b/source/behavior/entities/format/behaviors/circle_around_anchor.json
index 96346280..f8afa310 100644
--- a/source/behavior/entities/format/behaviors/circle_around_anchor.json
+++ b/source/behavior/entities/format/behaviors/circle_around_anchor.json
@@ -47,22 +47,26 @@
     "radius_change": {
       "type": "number",
       "title": "Radius Change",
-      "description": "The number of blocks to increase the current movement radius by, upon successful `radius_adjustment_chance`. If the current radius increases over the range maximum, the current radius will be set back to the range minimum and the entity will change between clockwise and counter-clockwise movement."
+      "description": "The number of blocks to increase the current movement radius by, upon successful `radius_adjustment_chance`. If the current radius increases over the range maximum, the current radius will be set back to the range minimum and the entity will change between clockwise and counter-clockwise movement.",
+      "default": 1.0
     },
     "radius_adjustment_chance": {
       "type": "number",
       "title": "Radius Adjustment Chance",
-      "description": "Percent chance to determine how often to increase the size of the current movement radius around the anchor point. 1 = 100%. `radius_change_chance` is deprecated and has been replaced with `radius_adjustment_chance`."
+      "description": "Percent chance to determine how often to increase the size of the current movement radius around the anchor point. 1 = 100%. `radius_change_chance` is deprecated and has been replaced with `radius_adjustment_chance`.",
+      "default": 0.004
     },
     "height_adjustment_chance": {
       "type": "number",
       "title": "Height Adjustment Chance",
-      "description": "Percent chance to determine how often to increase or decrease the current height around the anchor point. 1 = 100%. `height_change_chance` is deprecated and has been replaced with `height_adjustment_chance`."
+      "description": "Percent chance to determine how often to increase or decrease the current height around the anchor point. 1 = 100%. `height_change_chance` is deprecated and has been replaced with `height_adjustment_chance`.",
+      "default": 0.002857
     },
     "angle_change": {
       "type": "number",
       "title": "Angle Change",
-      "description": "Number of degrees to change this entity's facing by, when the entity selects its next anchor point."
+      "description": "Number of degrees to change this entity's facing by, when the entity selects its next anchor point.",
+      "default": 15.0
     }
   },
   "examples": [