ruby-crowned kinglet regulus calendula profile

america anbsp animal avian background beautiful bird birdwatching calendula closeup corthylio couronne crowned cute detailed display environment extreme family green grinnelli kinglet little male natural nature north obscurus olive order ornithology outdoors passeriformes passerine pensilvanica perched plumage red regulidae regulus reyezuelo roitelet rubashy rubis ruby rubycrowned small songbird springtime thorns tiny wild wildlife wing