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119. The Ruby-crowned Kinglet (Regulus calendula). 120. The Pine Warbl...
Picryl description: Public domain image of a bird, free to use, no copyright restrictions.
95. The Golden-crested Kinglet (Regulus satrapa). 96. The Winter Wren ...
Public domain scan of 19th-century zoological illustration, free to use, no copyright restrictions image
Regulus cristatus. Golden-crested Wren, or Kinglet.
Public domain scan of print / book page depicting birds, ornithology, free to use, no copyright restrictions image - Picryl description
Regulus ignicapillus. Fire-crested Wren.
Public domain scan - Bird, 19th-century zoological illustration print, free to use, no copyright restrictions image - Picryl description