Looking for an interesting image to use here I discovered this information visual [1] about the molting, breeding, and migration periods of the Calliope Hummingbird. I have heard about the Cornell bird encyclopedia [2] but this is the first time I have seen content from it. I would like to see more; perhaps my library has access to it.
I wonder, do they let you overlay several birds year so you can compare the comings and goings of the population?
[1] http://content.ornith.cornell.edu/ UEWebApp/images/ calliope-hummer-fig-4_6.gif
[2] http://bna.birds.cornell.edu/BNA/
