Fig. 1From: Behaviour of cranes (family Gruidae) mirrors their phylogenetic relationshipsDistribution of behavioural traits with strong phylogenetic signal across the phylogeny. The phylogenetic tree contains numbers of recognized nodes. Traits are presented by letter codes (for full names see Table 1). Codes for multi-state characters: 0 = absent, 1 = occurring occasionally, 2 = occurring regularly, 3 = occurring often, 4 = occurring very often, crossed white area = undocumentedBack to article page