drawing of a series of

animal aves avian biology bird birdie bullfinch cartoon cheeper collurio contour doodle draw drawing engraving erithacus europe fauna feather feathered fluffy flycatcher forest funny garden graphic hand handmade illustration ink isolated laniidae lanius little montanus municipal nature nestling ornithology outdoor outline own parus passerine pencil perched picture plumage redbreast robin rubecula shrike silhouette sitting sketch small songbird sparrow strokes symbol tail thrush tiny tit titmouse tomtit turdus tweet urban vector white wild wildlife wing wintering zonotrichia zoology