Nest Game

mystery nest image

Which of these birds made this nest?
Common Nighthawk (hint)
Ruby-throated Hummingbird (hint)
Great Horned Owl (hint)
0% complete

If this game is too hard, here is an easier version.

Nest descriptions from: A Field Guide to Birds Nests by Hal H. Harrison. Houghton Mifflin Company. Boston. 1975.