Dusky Crag-Martin
Ptyonoprogne concolor
Swallows (Hirundinidae) · Passeriformes (Passeriformes)
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Spesso confuso con
Nei quiz i giocatori confondono più spesso Dusky Crag-Martin con questi uccelli: o questa specie è stata scelta per errore, o il contrario.
| Specie | Confusioni |
|---|---|
| Gray-throated Martin Riparia chinensis | 3 |
| Topino Riparia riparia | 3 |
| Pale Martin Riparia diluta | 1 |
| Hill Swallow Hirundo domicola | 1 |
| Rondine Hirundo rustica | 1 |
Famiglia
The swallows, martins, and saw-wings, or Hirundinidae, are a family of passerine songbirds found around the world on all continents, including occasionally in Antarctica. Highly adapted to aerial feeding, they have a distinctive appearance. The term "swallow" is used as the common name for Hirundo rustica in the United Kingdom and Ireland.
Ordine
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 …