On fieldwork yesterday we came across a pair of snow petrels. One was trying to flirt with the other, who was having none of it (see pics). On their second flyby the apathetic petrel ended up with a bit of a red/orange smear on it. Not sure what it’s from, either the too-keen petrel threw up a bit in failed display of affection or apathetic petrel got shat on… it looks like the red poo that’s characteristic of a krill-based diet? Do snow petrels eat krill?