FEATURE
because they are useful for territorial fights. Furthermore, trumpeters live in polyandry: Only the highest ranked female mates with several males. All group members however, incubate the eggs and help rear the chicks. In the animal kingdom this strategy is very rare. During the mating period several males compete for the attention of the highest ranked female. Spectacular courtship dances take place: The birds display their plumage and perform impressive capers. In general the female copulates with a specific male more frequently the higher its rank within the group. Afterwards, the breeding nesthole is chosen very carefully. It is located sheltered, approximately 10-15 meters above the ground within tree trunks. Here, 2-4 eggs are laid in a two
day interval and subsequently incubated for a maximum of 29 days. Already one day after hatching the cute
chicks leave their nest and walk around together with the group. With their reddish- brown downy plumage they strongly resemble young crane chicks. The similar appearance reflects the close systematic relationship with cranes. Three weeks long all group members lovingly care for the juveniles, feed and protect them from e.g. snakes or ocelots. The social behavior of trumpeters is not only reflected by the joint rearing of the juveniles, but also by their tender, mutual plumage care. Plumage care is enjoyed by single individuals even with closed eyes. Trumpeters were also already observed during joint playing, bathing and sunbathing.
BIRD SCENE 25
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