set of birds: crow, hoopoe, oriole, woodpecker, jay, gold

animal avian biology bird carduelis carrion contour corvidae corvus crow cyanocitta dendrocopos drawing engraving fauna finch flight garrulus glandarius goldfinch graphic hoopoe illustration insectivorous jay major naturalistic nature oriole oriolus ornithology outline passeriformes passerine pencil perch picidae picture plumage raven silhouette siskin species upupa vector wild wildlife wing woodpecker zoology