The four CSV files include all data used in... Armstrong et al (2021) Capturing the dynamics of small populations: a retrospective assessment using long-term data for an island reintroduction. Journal of Animal Ecology. These files and the variables contained in each are as follows: "Tiri_toutouwai_encounter_history" shows the encounter history for all marked individuals considered to enter the population Cohort: T1992 and T1993 refer to the individuals translocated to Tiritiri Matangi in April 1992 and June 1993 respectively, whereas J1992, J1993, etc. refer to individuals produced on Tiritiri Matangi in the 1992/93 cohort, 1993/94 cohort, etc. Bird: individual's colour combination Number: individual's metal band number first: survey at which individual considered to enter population, e.g., "first=1" means originals released in April 1992 removed: whether individual was removed (harvested) for translocation to another site, where 1 = yes, 0 = no last: survey at which individual was last available for detection if it survived that long; is always survey 76 (January 2018) unless individual was removed sex: 1 = male, 0 = female, NA = unknown first.fl: whether individual entered the population as a fledgling (1 = yes, 0 = no) band.fl: whether individual was banded as a fledgling ca. 4 weeks after leaving the nest (1 = yes, 0 = no); otherwise it was banded in the nest trans: whether individual was translocated to Tiritiri Matangi (1 = yes, 0 = no) dark: whether individual was record as having dark plumage when captured for translocation, usually indicative of being a male > 1 year old (1 = yes, 0 = no) tz: tarsus length (mm) recorded when captured for translocation, taken by holding one end of the caliper against the notch on the upper end of the tarsometatarsus and the other end of the caliper against the folded foot Pedigree.known: proportion of the individual's pedgigree that is known, calculated using PMx 1.0 (see Armstrong et al. 2021. Conservation Biology 35: 859–869) F.known: individual's inbreeding coefficient for the known part portion of its pedigree, calculated using PMx 1.0 (see Armstrong et al. 2021. Conservation Biology 35: 859–869) cohort: cohort number for modelling the unknown portion of individual's inbreeding coefficient (1=1992/93 juvs, 2=1993/94 juvs etc.); note that translocated birds also given "1" but this is irrelevant because F.known = 1 for these individuals The subsequent columns show the encounter histories matrix where: 1 = seen in survey, 0 = not seen (or hasn not entered population yet), A = not seen in survey but known to have been alive from auxiliary sighting, D = known to be dead This matrix is used to generate the two matrices used in the survival analysis: "seen" shows whether each individual was seen (1) or not (0) on each survey; "alive" shows 1 for each survey the individual was known to be alive after entering the population, 0 if known to be dead, and NA otherwise "Tiri_toutouwai_interval_data" shows information on the surveys used in the survival analysis and the between-survey intervals Date: the midpoint, range of dates, or month in which each of the 76 surveys in the encounter history occurred; surveys were usually done over 4 days Adj_date: the survey dates used in the analysis; these needed to adjusted so that juveniles were considered to enter the population and transition to adulthood at the same times each year survey: survey number from 1 to 76 interval: time elapsed since last survey, in years year: year in which survey conducted, which year 1 begins September 1992, year 2 begins September 1993, etc. "Tiri_toutouwai_yearly_data" shows data collected on an annual basis, mostly at the start of the breeding season (September) Year: year at start of breeding season season that the data apply to sbs: survey corresponding to the start of the breeding season n.UB.F.band: number of previously unbanded females that were banded at the start of the breeding season n.UB.M.band: number of previously unbanded males that were banded at the start of the breeding season left_UB_F: number of unbanded females that were detected at the start of the breeding season but left unbanded left_UB_M: number of unbanded males that were detected at the start of the breeding season but left unbanded n.UB.F: total of unbanded females were detected at the start of the breeding season (n.UB.F.band + left_UB_F) n.UB.M: total of unbanded females were detected at the start of the breeding season (n.UB.M.band + left_UB_M) N.F.est: estimated number of females at start of the breeding season, including banded and unbanded N.F.sd: standard deviation around the estimated number of females MNA: minimum number of individuals alive (both males and females) at the start of the breeding season U.est: estimated number of undetected individuals U.sd: standard deviation around estimated number of undetected individuals kinship.mean: mean kinship of all possible male-female pairs that breeding season kinship.var: variance in kinship among all possible male-female pairs that breeding season harvest: month when birds removed (harvested) for translocation elsewhere; NA if no harvest t.H: time elapsed (in years) between mid-March and harvest N.M.H: number of adult males harvested N.F.H: number of adult females harvested N.J.H: number of juveniles harvested The first several variables were not used in the J. Anim. Ecol. paper but were used earlier to derive the abundance estimates See Armstrong et al. 2021 (Conservation Biology 35: 859–869) for the derivation of the abundance estimates and mean and variance in kinship "Tiri_toutouwai_reproduction_data" shows data on reproductive output by monitored breeding females Year: year at start of breeding season season that the data apply to Site: name of forest fragment on Tiritiri Matangi where female lived that breeding season ("+" means she moved between sites during the season) Female: individual colour combination of female Male(s): individuals colour combination of male(s); while toutouwai are generally monogamous, females sometimes had different males for successive clutches Male_used: this is the male used when calculating Pedigree.known.f and F.known.f (see below) year.f: the number assigned to each breeding season in the analysis; 1 = 1992/1993, 2 = 1993/1994, etc. trans.f: whether the female was translocated to Tiritiri Matangi in the year of the observation (1 = year, 0 = no) unpaired: whether the female was unpaired that year (1 = year, 0 = no); i.e., she had no help from a male partner in terms of feeding herself or the chicks age.f: age class of the female that breeding season (1 = 2nd year or older, 0 = first year) Pedigree.known.f: proportion of pedgigree known for any offspring produced by the pair, calculated using PMx 1.0 (see Armstrong et al. 2021. Conservation Biology 35: 859–869) F.known.f: inbreeding coefficient for the known part portion for any offspring produced by the pair, calculated using PMx 1.0 (see Armstrong et al. 2021. Conservation Biology 35: 859–869) fl: number of young fledged by the female that breeding season