Breeding performance and predation rates
All 12 males made at least one breeding attempt (3±1 nests; 1–5), but
only 3 nests (each from a different male, or 25% of focal males)
produced fledglings. In total, we found 34 completed nests across the 12
focal territories. We found nest predation to be highest during the
nestling care stage. More specifically, we recorded 10 predation events,
of which 9 (26%) were of known stages: 2 (6%) during the egg stage and
7 (21%) during nestling care. We found the 10thattacked by Argentine ants, which only attack nests with edible
contents, the day after its discovery, before we could confirm weather
eggs or nestlings were inside. Therefore, it is unclear whether it had
been predated during late-egg stage or early nestling stage.