Column descriptions

A- Bird number
B- Day of capture and pre-foraging trip sampling (Julian)
C- Treatment: corticosterone implanted or sham/control
D- Maximum depth of dives during foraging trip (mean value), in meters
E- Mean depth of dives, in meters
F- Total additive depth of all dives, in meters
G- Mean duration of dives, in seconds
H- Total additive duration of dives, in seconds
I- Mean number of wiggles, or foraging events, per dive
J- Total number of wiggles exhibited during all dives
K- Chick mass measured on Jan 20.
L- Pre-foraging corticosterone [ng/ml)
M- Post-foraging corticosterone [ng/ml)
N- Pre-foraging body mass (kg)
O- Post-foraging body mass (kg)
P- Pre-foraging prolactin (ng/ml)
Q- Post-foraging prolactin (ng/ml)
R- Total time away from colony during foraging trip (days)