diff --git a/Module/BirdsModule/FlowMap.cs b/Module/BirdsModule/FlowMap.cs
index 464828a..b814e4c 100644
--- a/Module/BirdsModule/FlowMap.cs
+++ b/Module/BirdsModule/FlowMap.cs
@@ -90,7 +90,8 @@ namespace Flocking
 				for( int y = 0; y < regionY; y++ ) {
 					int zMax = Convert.ToInt32(m_scene.GetGroundHeight( x, y ));
 					for( int z = 1; z < zMax; z++ ) {
-						m_flowMap[x,y,z] = 100f;
+						if (x < regionX && y < regionY && z < zMax)
+							m_flowMap[x,y,z] = 100f;
 					}
 				}
 			}
@@ -99,8 +100,10 @@ namespace Flocking
 			foreach( EntityBase entity in m_scene.GetEntities() ) {
 				if( entity is SceneObjectGroup ) {
 					SceneObjectGroup sog = (SceneObjectGroup)entity;
-					
-					//todo: ignore phantom
+
+					if (sog.IsPhantom)
+						continue;
+
 					float fmaxX, fminX, fmaxY, fminY, fmaxZ, fminZ;
 					int maxX, minX, maxY, minY, maxZ, minZ;
 					sog.GetAxisAlignedBoundingBoxRaw( out fminX, out fmaxX, out fminY, out fmaxY, out fminZ, out fmaxZ );
@@ -115,7 +118,8 @@ namespace Flocking
 					for( int x = minX; x < maxX; x++ ) {
 						for( int y = minY; y < maxY; y++ ) {
 							for( int z = minZ; z < maxZ; z++ ) {
-								m_flowMap[x,y,z] = 100f;
+								if(x < maxX && y < maxY && z < maxX)
+									m_flowMap[x,y,z] = 100f;
 							}
 						}
 					}