diff --git a/3d-models.cpp b/3d-models.cpp
index 39628f89..3f6e1402 100644
--- a/3d-models.cpp
+++ b/3d-models.cpp
@@ -589,10 +589,10 @@ void geometry_information::clone_shape(hpcshape& sh, hpcshape& target) {
   }
 
 void geometry_information::animate_bird(hpcshape& orig, hpcshape animated[30], ld body) {
-  for(int i=0; i<30; i++) {
+  for(int i=0; i<=15; i++) {
     auto& tgt = animated[i];
     clone_shape(orig, tgt);
-    ld alpha = sin(12 * degree * i) * 30 * degree;
+    ld alpha = cos(12 * degree * i) * 30 * degree;
     for(int i=tgt.s; i<tgt.e; i++) {
       if(abs(hpc[i][1]) > body) {
         ld off = hpc[i][1] > 0 ? body : -body;
@@ -990,6 +990,7 @@ void geometry_information::make_3d_models() {
   make_revolution_cut(shButterflyWing, 180, 0, 0.05*S);
   finishshape();
   
+  DEBB(DF_POLY, ("animatebirds"));
   animate_bird(shEagle, shAnimatedEagle, 0.05*S);
   animate_bird(shTinyBird, shAnimatedTinyEagle, 0.05*S/2);
 
@@ -1001,6 +1002,8 @@ void geometry_information::make_3d_models() {
   animate_bird(shBatWings, shAnimatedBat, 0.05*S);
   animate_bird(shBatBody, shAnimatedBat2, 0.05*S);
 
+  DEBB(DF_POLY, ("disablers"));
+
   disable(shWolfRearLeg);
   disable(shWolfFrontLeg);
   disable(shDogRearLeg);
diff --git a/graph.cpp b/graph.cpp
index c5a3d483..bb88fbf8 100644
--- a/graph.cpp
+++ b/graph.cpp
@@ -1227,7 +1227,9 @@ void drawPlayer(eMonster m, cell *where, const transmatrix& V, color_t col, doub
 
 int wingphase(int period, int phase = 0) {
   ld t = fractick(period, phase);
-  return int(t * 30) % 30;
+  int ti = int(t * 30) % 30;
+  if(ti > 15) ti = 30 - ti;
+  return ti;
   }
 
 transmatrix wingmatrix(int period, int phase = 0) {
diff --git a/hyper.h b/hyper.h
index d9e0cad2..5485d72e 100644
--- a/hyper.h
+++ b/hyper.h
@@ -4463,8 +4463,8 @@ hpcshape
   
   shPBodyOnly, shPBodyArm, shPBodyHand, shPHeadOnly,
   
-  shAnimatedEagle[30], shAnimatedTinyEagle[30], shAnimatedGadfly[30], shAnimatedHawk[30], shAnimatedButterfly[30], 
-  shAnimatedGargoyle[30], shAnimatedGargoyle2[30], shAnimatedBat[30], shAnimatedBat2[30],
+  shAnimatedEagle[16], shAnimatedTinyEagle[16], shAnimatedGadfly[16], shAnimatedHawk[16], shAnimatedButterfly[16], 
+  shAnimatedGargoyle[16], shAnimatedGargoyle2[16], shAnimatedBat[16], shAnimatedBat2[16],
   
   shDodeca;
 
@@ -4574,7 +4574,7 @@ hpcshape
   void make_revolution(hpcshape& sh, int mx = 180, ld push = 0);
   void make_revolution_cut(hpcshape &sh, int each = 180, ld push = 0, ld width = 99);
   void clone_shape(hpcshape& sh, hpcshape& target);
-  void animate_bird(hpcshape& orig, hpcshape animated[30], ld body);
+  void animate_bird(hpcshape& orig, hpcshape animated[16], ld body);
   void slimetriangle(hyperpoint a, hyperpoint b, hyperpoint c, ld rad, int lev);
   void balltriangle(hyperpoint a, hyperpoint b, hyperpoint c, ld rad, int lev);
   void make_ball(hpcshape& sh, ld rad, int lev);