diff --git a/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityAechorPlant.java b/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityAechorPlant.java
index 6694104..84af665 100644
--- a/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityAechorPlant.java
+++ b/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityAechorPlant.java
@@ -50,8 +50,9 @@ public class EntityAechorPlant extends EntityAetherAnimal {
 	}
 
 	@Override
-	public int getMaxSpawnedInChunk() {
-		return 3;
+	public boolean getCanSpawnHere()
+	{
+		return this.rand.nextInt(15) == 0 && super.getCanSpawnHere();
 	}
 
 	@Override
diff --git a/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityCockatrice.java b/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityCockatrice.java
index f3fa257..2ec2085 100644
--- a/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityCockatrice.java
+++ b/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityCockatrice.java
@@ -48,7 +48,7 @@ public class EntityCockatrice extends EntityMob {
 
 	@Override
 	public boolean getCanSpawnHere() {
-		return this.rand.nextInt(25) == 0 && super.getCanSpawnHere();
+		return this.rand.nextInt(5) == 0 && super.getCanSpawnHere();
 	}
 
 	@Override
diff --git a/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityWhirlwind.java b/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityWhirlwind.java
index 94b32ff..b70b774 100644
--- a/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityWhirlwind.java
+++ b/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityWhirlwind.java
@@ -345,7 +345,7 @@ public class EntityWhirlwind extends EntityMob {
 		int j = MathHelper.floor_double(this.boundingBox.minY);
 		int k = MathHelper.floor_double(this.posZ);
 
-		return this.rand.nextInt(450) == 0 && this.worldObj.getBlock(i, j - 1, k) == BlocksAether.aether_grass && this.worldObj.getBlockLightValue(i, j, k) > 8 && this.worldObj.checkNoEntityCollision(this.boundingBox) && this.worldObj.getCollidingBoundingBoxes(this, this.boundingBox).isEmpty() && !this.worldObj.isAnyLiquid(this.boundingBox);
+		return this.rand.nextInt(15) == 0 && this.worldObj.getBlock(i, j - 1, k) == BlocksAether.aether_grass && this.worldObj.getBlockLightValue(i, j, k) > 8 && this.worldObj.checkNoEntityCollision(this.boundingBox) && this.worldObj.getCollidingBoundingBoxes(this, this.boundingBox).isEmpty() && !this.worldObj.isAnyLiquid(this.boundingBox);
 	}
 
 	public EntityPlayer findClosestPlayer() {
diff --git a/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityZephyr.java b/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityZephyr.java
index 915a452..edbe5bc 100644
--- a/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityZephyr.java
+++ b/src/main/java/com/gildedgames/the_aether/entities/hostile/EntityZephyr.java
@@ -40,7 +40,7 @@ public class EntityZephyr extends EntityFlying implements IMob {
 		int j = MathHelper.floor_double(this.boundingBox.minY);
 		int k = MathHelper.floor_double(this.posZ);
 
-		return this.worldObj.getBlock(i, j - 1, k) == BlocksAether.aether_grass && this.rand.nextInt(85) == 0 && this.worldObj.getCollidingBoundingBoxes(this, this.boundingBox).size() == 0 && !this.worldObj.isAnyLiquid(this.boundingBox) && this.worldObj.getBlockLightValue(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.boundingBox.minY), MathHelper.floor_double(this.posZ)) > 8 && super.getCanSpawnHere();
+		return this.worldObj.getBlock(i, j - 1, k) == BlocksAether.aether_grass && this.rand.nextInt(25) == 0 && this.worldObj.getCollidingBoundingBoxes(this, this.boundingBox).size() == 0 && !this.worldObj.isAnyLiquid(this.boundingBox) && this.worldObj.getBlockLightValue(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.boundingBox.minY), MathHelper.floor_double(this.posZ)) > 8 && super.getCanSpawnHere();
 	}
 
 	@Override
diff --git a/src/main/java/com/gildedgames/the_aether/entities/passive/EntityAerwhale.java b/src/main/java/com/gildedgames/the_aether/entities/passive/EntityAerwhale.java
index dc40977..e04a7e9 100644
--- a/src/main/java/com/gildedgames/the_aether/entities/passive/EntityAerwhale.java
+++ b/src/main/java/com/gildedgames/the_aether/entities/passive/EntityAerwhale.java
@@ -56,7 +56,7 @@ public class EntityAerwhale extends EntityFlying {
 		int j = MathHelper.floor_double(this.boundingBox.minY);
 		int k = MathHelper.floor_double(this.posZ);
 
-		return this.worldObj.getBlock(i, j - 1, k) == BlocksAether.aether_grass && this.rand.nextInt(65) == 0 && this.worldObj.getCollidingBoundingBoxes(this, this.boundingBox).size() == 0 && !this.worldObj.isAnyLiquid(this.boundingBox) && this.worldObj.getBlockLightValue(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.boundingBox.minY), MathHelper.floor_double(this.posZ)) > 8 && super.getCanSpawnHere();
+		return this.worldObj.getBlock(i, j - 1, k) == BlocksAether.aether_grass && this.worldObj.getCollidingBoundingBoxes(this, this.boundingBox).size() == 0 && !this.worldObj.isAnyLiquid(this.boundingBox) && this.worldObj.getBlockLightValue(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.boundingBox.minY), MathHelper.floor_double(this.posZ)) > 8 && super.getCanSpawnHere();
 	}
 
 	@Override
diff --git a/src/main/java/com/gildedgames/the_aether/entities/passive/mountable/EntitySwet.java b/src/main/java/com/gildedgames/the_aether/entities/passive/mountable/EntitySwet.java
index ccd476c..5458ff5 100644
--- a/src/main/java/com/gildedgames/the_aether/entities/passive/mountable/EntitySwet.java
+++ b/src/main/java/com/gildedgames/the_aether/entities/passive/mountable/EntitySwet.java
@@ -68,6 +68,12 @@ public class EntitySwet extends EntityMountable {
         }
     }
 
+    @Override
+    public boolean getCanSpawnHere()
+    {
+        return this.rand.nextInt(10) == 0 && super.getCanSpawnHere();
+    }
+
     @Override
     public void onUpdate() {
         super.onUpdate();
diff --git a/src/main/java/com/gildedgames/the_aether/world/biome/AetherBiome.java b/src/main/java/com/gildedgames/the_aether/world/biome/AetherBiome.java
index 5eaf090..a999a77 100644
--- a/src/main/java/com/gildedgames/the_aether/world/biome/AetherBiome.java
+++ b/src/main/java/com/gildedgames/the_aether/world/biome/AetherBiome.java
@@ -58,7 +58,7 @@ public class AetherBiome extends BiomeGenBase {
 
 	private void addCreatureEntry(ArrayList<SpawnListEntry> list)
 	{
-		list.add(new SpawnListEntry(EntityAerwhale.class, 30, 1, 1));
+		list.add(new SpawnListEntry(EntityAerwhale.class, 12, 1, 1));
 		list.add(new SpawnListEntry(EntityPhyg.class, 12, 4, 4));
 		list.add(new SpawnListEntry(EntitySheepuff.class, 10, 4, 4));
 		list.add(new SpawnListEntry(EntityFlyingCow.class, 8, 4, 4));
@@ -68,11 +68,11 @@ public class AetherBiome extends BiomeGenBase {
 
 	private void addMobEntry(ArrayList<SpawnListEntry> list)
 	{
-		list.add(new SpawnListEntry(EntityAechorPlant.class, 1000, 2, 3));
 		list.add(new SpawnListEntry(EntityCockatrice.class, 100, 4, 4));
-		list.add(new SpawnListEntry(EntityZephyr.class, 95, 1, 2));
-		list.add(new SpawnListEntry(EntityWhirlwind.class, 90, 1, 2));
-		list.add(new SpawnListEntry(EntitySwet.class, 1, 2, 3));
+		list.add(new SpawnListEntry(EntityZephyr.class, 50, 1, 2));
+		list.add(new SpawnListEntry(EntityAechorPlant.class, 20, 2, 3));
+		list.add(new SpawnListEntry(EntityWhirlwind.class, 10, 1, 2));
+		list.add(new SpawnListEntry(EntitySwet.class, 10, 2, 3));
 	}
 
 	@Override