A bird in its home (grown on a vine, fashioned by humans).
Cute little guy, too.
I found this on the Scientific Illustration tumblr, which got it from the Cincinnati Public Library’s copy of Illustrations of the nests and eggs of birds of Ohio.
Apparently, the book started as a kind of by-subscription service, like a bird-watching newsletter, but then was bound together and published as a guide.
Seems like something people still do today, I suppose. Only more with blog entries and Medium posts and less with songbirds.