The speech imitation activity (SIA) of talking birds was compared with
their natural signalization and prototypic human speech by means of a
specially developed device with KAPROS-01 Software. Twelve species of
Psittaciformes and Passeriformes were studied. In the SIA of some spe
cies, prototype-speech effects predominate (prototype-speech imitation
), while that of other species are mostly prototype species effects (p
rototype-species imitation). Male voices are better imitated by large
birds and female ones by small birds. The similarity of speech imitone
s is observed in species that use the same type of imitation. When kep
t in captivity, the talking species use natural-speech imitones with p
riority and natural signalization less frequently.