user distributions:     models/birds/user_dist.f90
model:                  models/birds/model.txt
initial values:         models/birds/initial_values.txt
simulation:             models/birds/simulation.txt
proposals:              models/birds/proposals.txt
update strategy:        models/birds/update.txt
to output:              models/birds/to_output.txt
last values:            models/birds/last_values.txt