Ruth Reynold's Six Sweet Bird Drawings

I found a whole folio of sweet graphite drawings by young Ruth Reynolds of Lancaster County PA depicting a variety of animals, her birds I think my favorites among them, which I'm listing here as a set. (This is all of them.) Done in school I presume--graphite on lined paper--and what a good thing I think for kids to learn their birds in detail, cultivating future bird watchers and lovers! I'm forever a sucker for drawings of birds, the more naive and earnest the better, and best when identified with hand-written labels. C. 1930s.

As reference: Warbler (upper left) 5 3/4" x 4 1/2". Peacock (center) 3" x 3". Sold as set of six. All in very good condition, graphite on lined paper.