diff --git a/R/compileGRAdata.R b/R/compileGRAdata.R
index 0243b10..adaa12a 100644
--- a/R/compileGRAdata.R
+++ b/R/compileGRAdata.R
@@ -140,15 +140,15 @@ compileGRAdata = function(yr,
       trap_rate = tagTrapRate(trap_dataframe = trap_yr,
                               week_strata = week_strata) %>%
         # mutate(trap_open = ifelse(n_trap > 0, T, F)) %>%
-        left_join(tibble(Start_Date = lubridate::int_start(week_strata),
+        left_join(tibble(start_date = lubridate::int_start(week_strata),
                          week_num = 1:length(week_strata)), by = 'week_num') %>%
-        mutate(Start_Date = lubridate::ymd(Start_Date)) %>%
+        mutate(start_date = lubridate::ymd(start_date)) %>%
         rename(n_trap_tags = n_trap,
                n_poss_tags = n_tot, # include the tag counts going into trap rate calc.
                trap_rate = rate,
                trap_rate_se = rate_se) %>%
         mutate(trap_open = if_else(n_trap_tags > 0, T, F)) %>%
-        select(Start_Date,
+        select(start_date,
                week_num,
                trap_open,
                everything())
@@ -164,7 +164,7 @@ compileGRAdata = function(yr,
                # add some error
                trap_rate_se = trap_rate * trap_rate_cv) %>%
         mutate(trap_open = if_else(trap_rate > 0, T, F)) %>%
-        select(Start_Date,
+        select(start_date = Start_Date,
                week_num,
                trap_open,
                everything())
@@ -230,7 +230,7 @@ compileGRAdata = function(yr,
   dam_weekly = dam_daily %>%
     group_by(week_num) %>%
     summarise(Species = unique(Species),
-              Start_Date = min(Date)) %>%
+              start_date = min(Date)) %>%
     ungroup() %>%
     left_join(dam_daily %>%
                 group_by(week_num) %>%
@@ -241,7 +241,7 @@ compileGRAdata = function(yr,
                 mutate_at(vars(win_cnt:n_invalid),
                           list(~ifelse(is.na(.), 0, .))), by = 'week_num') %>%
     mutate(window_open = ifelse(win_cnt > 0, T, F)) %>%
-    select(Species, Start_Date, week_num, everything())
+    select(Species, start_date, week_num, everything())
 
   if(incl_trapRate) {
     dam_weekly = addTrapRate(dam_weekly,