Fig. 1From: Niche switching and leapfrog foraging: movement ecology of sympatric petrels during the early breeding seasonEarly breeding season chronology of Blue Petrels, Thin-billed prions and Antarctic Prions from Kerguelen Islands. Larger dots mark more individuals starting or ending a phase on the same day. Note that Antarctic prions do not perform a continuous pre-laying exodus (e.g. see Electronic Supplement, Fig. S1), but the time bar here shows the length of the phase of alternating times at sea and in the colonyBack to article page