Did extreme nest predation favor the evolution of obligate brood parasitism in a duck?

The data file is an Excel data file. To analyze the data we imported the data into JMP and used Cox proportional hazard survival analyses to compare survival rates of the different treatments. We considered nests no longer surviving when all eggs had disappeared. We also examined patterns of partial predation (not all eggs taken) in terms of whether complete vs partial predation differed among treatments.