diff --git a/src/model_fitting/abundance_model.R b/src/model_fitting/abundance_model.R
index 8a19785ab7552228815f4ad636f36375021fb480..05ad596a079843c2b768444307b7216fae8b79fa 100644
--- a/src/model_fitting/abundance_model.R
+++ b/src/model_fitting/abundance_model.R
@@ -141,6 +141,10 @@ print(paste("this is ESW aerial:", ESW_aerial))
 NCS <- 1.12   #nest construction rate from Spehar et al. 2010
 PNB <- 0.88  #  proportion of nest builders from Spehar et al. 2010
 
+# alternative
+# NCS_sabah <- 1.0
+# NCS <- 1.16
+# PNB <- 0.89 # Husson 2009
 
 options("scipen" = 100, "digits" = 4)