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The Tapaculos (genus Scytalopus) is one of the most difficult to identify families of birds, mainly because of the similarity in appearance to others within the genus. However an important differentiating characteristic is their voice. In recent years many new species of Tapaculos have been described due to analyses of their song. On February 9th, Dr. [...] A recent work published by F. Gary Stiles in the Journal of Colombian Ornithology (Revista Ornitología Colombiana) presents evidence that the group of the Blue-crowned Motmot (Momotus momota) could be composed of at least 5 species based on differences in plumage patterns, biometrics, vocalizations, supplemented by information on geographic distributions and ecology. Some of the [...] |
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