This data file consists of R code and associated data files used to analyze movements of black scoters in Eastern North America and is associated with the manuscript "Annual-Cycle Movements and Phenology of Black Scoters in Eastern North America" published in Journal of Wildlife Management. *** blsc.csv (main datafile) contains state-space model-derived locations and individual data. Columns are organized as follows: id - unique identifier date - date of location (mm/dd/yy) jday - Julian date of location year - calendar year of location lon - longitude of location lat - latitude of location b - average assignment of location to either migrant (1) or resident (2) across all runs of the state-space model b.5 - most probable behavioral category based on average state assignment (1 = b ≤ 1.5 ; 2 = b > 1.5) sex - sex of individual (M = male, F = female) age_y1 - age of individual (HY = hatch year, SY = second year, TY = third year, ASY = after second year, ATY = after third year, AHY = after hatch year capture_reg - general area where individual was captured capture_subreg - specific region within capture region where individual was captured stage - period of the annual cycle to which the centroid belongs (W = winter, B = breeding, S = spring staging, M = fall staging and molt, WM = winter migration, BM = breeding migration, MM = molt migration, SM = spring migration) site - position of centroid within season (i.e., W1 = first site occupied during winter, W2 = second site occupied, etc.) cycle - number of annual cycles following transmitter attachment (1 = first cycle after attachment, 2 = second cycle after attachment, etc.) season - season of annual cycle in which centroid occurred (W = winter, F = fall, B = breeding, S = spring *** ind_vars.csv contains additional information on individual capture seasons and dates. Columns are as defined above with additional columns as follows: tagging_season - season in which bird was captured and fitted with PTT (W = winter, S = spring) tagging_date - date on which bird was captured and fitted with PTT *** all_seasons2.csv contains calculated values for between-year distances. Columns are as defined above with additional columns as follows: sex - AVG = average of all sites used by all other individuals in the following year, M = sites used by same individual in the following year (male), F = sites used by same individual in the following year (female) min_same = distance between sites used in subsequent years