A Slate Colored, Dark Eyed Junco

J. h. hyemalis. I'm pretty sure, anyway. Apparently these little buggers have quite a bit of variation and no two ornithologists can agree on whether or not there are two or three groupings of them, or possibly four, or if there are thirteen subspecies or fourteen, or possibly they're all different species entirely. Or maybe the heck with it and there are no subspecies after all and they're all the same bloody bird and flit about interbreeding and do as they damn well please. These were first described by Carl Linnaeus — you know, the Linnaean taxonomy guy? But it seems that hasn't helped narrow things down anyway. Enthusiastic amateurs are directed to "consult detailed identification references."

Look, this one is a grey one. I can tell you that much.

Full size rendition here.