"Column","Details"
"Crow.ID","A unique numeric identifier for each crow specimen."
"Museum.catalogue.number","A code derived from museum tag information. Prefix is denoting the museum the specimen was in. Cornell Lab of Ornithology in Ithaca, USA (CUMV); The Field Museum of Natural History in Chicago, USA (FMNH); The American Museum of Natural History in New York, USA (AMNH); The Smithsonian National Museum of Natural History in Washington, D.C., USA (USNM); The Natural History Museum at Tring, UK (NHMUK)."
"Form.ID","A unique ID formed of the date and time that also describes the time and date which the specimen was examined. This ID can be used to connected measurement data with other metadata files."
"Tarsus.length","In mm, derived from photographs. Length of the inner bend of the tibiotarsal articulation to the lowermost full scale at the base of the foot."
"Bill.base.width","In mm, derived from photographs. Width of lower bill at the base of the jaw uncovered by feathers."
"Bill.width.at.skin.border","In mm, derived from photographs. Width of lower bill at soft to hard tissue boundary, as parallel to reference grid as possible."
"Bill.base.length","In mm, derived from photographs. Length of lower bill from skin transition to tip of the lower bill."
"Width.at.nares","In mm, derived from photographs. Width of the top bill at nares."
"Height.at.nares","In mm, derived from photographs. Top of upper bill to base of lower bill at the nares."
"Nares.to.bill.tip","In mm, derived from photographs. Forward edge of nares to upper bill tip."
"Exposed.culmen","In mm, derived from photographs. Edge of exposed culmen to tip of the upper bill."
"Juvenile","Life stage of crow as reported by the museum metadata: Adult, Juvenile, or NA (where NA is unknown, unreported). We infilled clearly juvenile individuals, all remaining NAs are presumed to be adults."
"Photo.notes","Notes collected at the time the photographs were taken."
"Sex","Sex of crow as reported by the museum metadata: Male, Female, or NA (where NA is unknown, unreported, sexually immature)."
"Age","Life stage of crow as reported by the museum metadata: Mature, Juvenile, or NA (where NA is unknown, unreported). NA are presumed to be Adults."
"Date.Collected","Date crow was killed and collected as reported by the museum, prefixed with date_. Date format is YYYY-MM-DD. Where day, month, or year was unknown XX have replaced the digits. Instances where day, month, or year was missing but it is unclear which, have been left with as much information as possible."
"Collector","Person(s) reported by the museum to have killed and collected the specimen in the field, as reported by the Museum."
"Expedition","Named expedition during which the crow was collected, as reported by the Museum."
"Elevation","Museum reported meters above sea level where the crow was collected."
"Country","Museum reported country where the crow was collected, in filled where possible."
"State.Province","Museum reported sub-country named region where the crow was collected, in filled where possible."
"County","Museum reported sub-provincial named region where the crow was collected, in filled where possible."
"Precise.Locality","Museum reported description of exact locality where the crow was collected, in filled where possible."
"Museum.Latitude","Museum reported latitude of where the crow was collected."
"Museum.Longitude","Museum reported longitude of where the crow was collected."
"Geo.Latitude","The decimal degrees latitude created via the use of Google Geocoding API and the geocode() function from ggmap. Input was a concatenated string of Precise.Locality, County, State.Province, and Country."
"Geo.Longitude","The decimal degrees longitude created via the use of Google Geocoding API and the geocode() function from ggmap. Input was a concatenated string of Precise.Locality, County, State.Province, and Country."
"Corrected.Latitude","The decimal degrees latitude selected after manual review of locality data and geocoded suggestions."
"Corrected.Longitude","The decimal degrees longitude selected after manual review of locality data and geocoded suggestions."
"Location.Notes","Additional notes taken during location review process."