Birds |
There are ca. 10,600 species of contemporary birds divided into 28 orders and 170-200 families. Birds are traditionally subdivided into "Non-Passerines" and "Passerines". The former group encompasses all birds which are not passerines, i.e., not belonging to the order Passeriformes (perching birds or songbirds). Over 5,700 species and 82-110 families (more than half of all living birds) are within the largest order Passeriformes. The numbers of species and families are tentative as bird taxonomy is in a state of flux. Membership within families and taxanomic relationships are being constantly reshuffled and new species split at an unprecedented rate. We mainly use bird taxonomy presented in the Handbook of the Birds of the World (1992-2011), reserving our rights to accept or discard some taxonomic changes.
Non-Passerine Birds |
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Passerine Birds |
Bird nests and eggs |
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