Spring migratory bird detection

For species with no sensitivity rule (the majority), the 1 km grid is used. For sensitive species, a coarser grid (5-100 km) is used, or coordinates are removed entirely. The data_generalization field indicates the grid resolution (in km) applied to the coordinates for that record.

Possible values coordinates are snapped to: 1: 1 km grid (default for non-sensitive species, or species with no rule in the generalization table) 5: 5 km grid 10: 10 km grid 25: 25 km grid 50: 50 km grid 100: 100 km grid -1: Coordinates completely removed When data_generalization is anything other than 1, the following fields are also set to NA to prevent re-identification through linkage: rec_id, user_anon, time, len, dur, real_obs, rec_type, point_count_loc.

Documentation of fields: species: scientific species name prediction: prediction confidence value after species distribution model correction, 0...1 orig_prediction: prediction confidence value before species distribution model correction, 0...1 song_start: song start position in the recording, seconds rec_id: recording identifier (one recording can contain multiple results) result_id: result identifier feedback: isseen: indication from recorder whether they have seen the bird, boolean isheard: indication from recorder whether they have heard the bird, boolean user_anon: anonyumous user identifier time: observation datetime len: dur: real_obs: indication from recorder whether this is a real observation (as opposed to testing), boolean rec_type: type of recording, enum point_count_loc: name of the point count, string year: year YYYY lat: laltitude wgs84 decimal degrees, see above lon: laltitude wgs84 decimal degrees, see above data_generalization: data generalization code, enum