Graja
Corvus frugilegus
Crows, Jays, and Magpies (Corvidae) · Passeriformes (Passeriformes)
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A menudo se confunde con
En los quizzes, los jugadores suelen confundir Graja con estas aves: o se eligió esta especie por error, o al revés.
| Especies | Confusiones |
|---|---|
| Corneja Negra Corvus corone | 76 |
| Cuervo Grande Corvus corax | 40 |
| Grajilla Occidental Coloeus monedula | 23 |
| Corneja Cenicienta Corvus cornix | 13 |
| Arrendajo Euroasiático Garrulus glandarius | 12 |
Familia
Corvidae is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, magpies, jackdaws, jays, treepies, choughs, and nutcrackers. In colloquial terms, the crow family is made up of corvids; currently 135 species are included. The genus Corvus containing 47 species makes up over a third of the entire family.
Orden
A passerine () is any bird of the order Passeriformes (; from Latin passer 'sparrow' and formis '-shaped'), which includes more than half of all bird species. Sometimes known as perching birds, passerines generally have an anisodactyl arrangement of their toes (three pointing forward and one back), which facilitates perching. With more than 140 families and some 6,500 identified species, Passeriformes is the largest order of birds and one of the most diverse clades of terrestrial vertebrates, representing 60% of …