city bird icon set, color outline style

animals bird birds black bullfinch chickadee city collection color colorful common commonraven commonstarling crow design different eurasiansiskin european fauna flyingbird greattit gull icon illustration isolated ivorygulls jackdaw line magpie nature ornithology outline pigeon rockdove set sideview small songbird sparrow species standing swallow swift thin tit truethrush wild wildlife wing