Here is the famous first bird,
Archaeopteryx. Here depicted as a mainly ground-dwelling animal, like a tinamou or a rail. Michael Habib has
recently suggested that, because
Archaeopteryx's limb ratios and feather structure are most similar to ground dwelling and flightless island birds, it probably was on its way to evolving flightlessness, not flight. This was one of the things that made me want to illustrate
Archaeopteryx as rail or tinamou-like.
I hope to colour this somehow eventually.