Ares brings Astrid a food tribute. Astrid gets so excited that she falls through the opening between the box and the perch. She recovers perfectly and comes back to tug the tribute away from Ares.
Food tributes and flight displays are part of the annual mating rituals of peregrine falcons. Ares is good at bringing food tributes to Astrid but he always seems reluctant to let her take the food he is offering.