We have recently added the ability for website users to map roadkill observations by species. This can be useful if you want to see a general distribution of a species across the state, or perhaps you are studying a single species and want a species specific roadkill map.
Approximately half of the species that are found in California have been entered into CROS' database, so there are many species which, when selected, won't return any records. Conversely, if you choose a species like Raccoon, Striped Skunk, or Mule (or Black tailed) Deer, you might have to wait a little while for the map to draw all of the points, as these species represent our top most (dead) animals entered. Also note that observations where the Species Select List is left blank and only the "Write-in" species was entered (e.g. Rabbit, if one is unsure of the exact species) are omitted from this map.