![](http://www.alamy.com/thumbs/6/9629D883-50BD-46F6-9BB9-F2666F155AD8/2WW7AFE.jpg)
Old engraved illustration of Warbling vireo or Greenlet (Vireo gilvus). By Audubon: Birds of America, Philadelphia, 1840.
Size: 2008px × 3189px
Photo credit: © Old Images / Alamy / Afripics
License: Royalty Free
Model Released: No
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