Data for Songbirds initiate migratory flights synchronously relative to civil dusk

Data for published paper in Movement Ecology "Songbirds initiate migratory flights synchronously relative to civil dusk".  

These three datasets include all data necessary to recreate results and figures in the paper. Variable explanations for each are below.

Net_Displacement.Rdata

Motus_First_Tag_ID = unique identifier for each individual

Species_Season = identifier for species and season observed

Mig_Time = time elapsed in hours between detection and departure

Net_Displacement_Dist_Neg = distance in kilometers between detection site and departure site

Shape = variable needed for ggplot plotting

Departure_Time.Rdata

Species_Season = identifier for species and season observed

Spring_or_Fall_Departure = Season of departure

Year = year of departure

Age = Age at departure (HY = hatch year, AHY = after hatch year, SY = second year, ASY = after second year)

Sex = sex of individual

Departure_DateTime_UTC = departure date and time in UTC time zone

Sunset = time of local sunset in UTC

Dusk = time of local civil dusk in UTC

Min_After_Sunset = time of departure in minutes elapsed since sunset

Min_After_Dusk = time of departure in minutes elapsed since dusk

SunAngle_Degrees = sun elevation angle at departure

Motus_First_Tag_ID = Motus Tag ID for each individual

ID = unique ID of each individual

Clouds_and_Departure_Time.Rdata

Year = year of departure

Species_Season = identifier for species and season observed

Min_After_Dusk = time of departure in minutes elapsed since dusk

Tot_Cloud_Cover.HrOf.31km = estimated total cloud cover for the hour of civil dusk

Overcast = binary overcast (>= 95%) vs. mostly clear (<= 25%) variable