The file "S_Greenland_Summary_occupancy_and_productivity-1981-2021.csv" contains a summary of the raw data 
   provided in the S_Greenland_Peregrine_monitoring_data-1981-2021.csv file. 


VARIABLES

Occupancy = % of known sites occupied ('known sites' = sites where Peregrines are known to have bred in the past)

Nest success =	% of occupied sites producing young

Young/occupied site = Number of young per occupied site; includes young of any age (full broods, i.e. all viable eggs hatched). 
   Represents 'productivity' of the population, albeit a slight overestimate due to some post-survey mortality of small young.

Young/successful pair =	Number of young/successful pair; includes young of any age (full broods, i.e. all viable eggs hatched). 
   Represents an estimate of 'average brood size', not 'productivity' in the population.