** gold_standard_data.csv **

Gold Standard Data
Expert classifications for 4,149 image sets. Unlike Snapshot Serengeti volunteers, experts were allowed to indicate if a capture event was impossible to identify. Fields are as follows: CaptureEventID: Same indicator as in the raw and reduced classification data; NumSpecies: The number of species in this capture event; Species: One of the 48 possibilities or “impossible"; Count: Number of individuals, estimated as 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11-50 or 51+.


** search_effort.csv **

Operation Dates
Description	The dates that each camera was active and functioning properly, extracted from the image EXIF data as the first and last dates of valid photographs on a given SD card. Valid photographs are defined as those taken while the camera was secured on the tree pointing outwards (in contrast to photos taken after a camera was torn down and facing the ground).


** consensus_data.csv **

Consensus classifications and metadata
Description	We applied the plurality algorithm (described in the manuscript) to the raw classification data to produce a single classification per capture event, accompanied by measures of uncertainty and difficulty. Each species classified in a single capture event receives its own record and species-specific measures of uncertainty. Metadata (data/time & location) are included to facilitate ecological analyses. This dataset excludes all images retired as “blank.”


** consensus_data_README.docx **

Format details for consensus_data.csv .


** all_images.csv **

URL information for retrieving each image; 1 record per image. All images in this data descriptor can be accessed at
 https://snapshotserengeti.s3.msi.umn.edu/ by appending the URL_Info field. For example, appending the value ‘S1/B04/B04_R1/S1_B04_R1_PICT0012.JPG’ yields the full URL:
 https://snapshotserengeti.s3.msi.umn.edu/S1/B04/B04_R1/S1_B04_R1_PICT0012.JPG. Pasting this value into a browser will display the image in the browser.


** raw_data_for_dryad.csv **

Raw classification dataset; 1 record per unique user, capture event, and species. Includes images retired as “Blank” and “Blank_consensus.”


** raw_data_README.docx **

Format details for raw_data_for_dryad.csv .