diff --git a/src/modules/butterflies/butterflies_populations.c b/src/modules/butterflies/butterflies_populations.c
index 4431f0772c80338d630b98504325efdde1922ff4..2aebbda6c0fa8d776848a5cc0357a8612428985c 100644
--- a/src/modules/butterflies/butterflies_populations.c
+++ b/src/modules/butterflies/butterflies_populations.c
@@ -95,7 +95,7 @@ void bf_cell_maturation(struct cats_grid *grid, struct cats_thread_info *ts, cat
         cats_dt_population adults = poisson(ts->rng, eggs * survival);
         assert(adults >= 0);
         cats_dt_environment suit = get_suitability(grid, row, col);
-        printf("ABCD,%d,%d,%0.3f\n", (int) orig_eggs, adults, suit);
+        //printf("ABCD,%d,%d,%0.3f\n", (int) orig_eggs, adults, suit);
         set_population_ignore_cc(grid, row, col, adults);
 
         if (adults > max_cc * 10) {