Yes, I think it is a good starting point. Because the central place is fixed point that birds must return during breeding, you can then measure variability in foraging behaviour in relation to breeding performance. But also take in consideration factors that may confound these patterns: changes in foraging strategies such alternating short and long trips, differences in population age structure if available and compare biological variables at the same temporal scale to environmental variables. Google scholar these terms + seabirds to access a rich literature...