Prior to heading to Grand Junction last December I checked the status and distribution of species. As I explained in my 6% rule post, eBird bar charts come in handy for getting a feel for likely species. The post points out I’ve found the odds drop quickly for species with a number under .06. Ruby-crowned Kinglet distribution in Western Colorado came in at .04 and Wood Duck .03. Without actual chasing I probably wouldn’t see them. So I made a mental note they might be there and moved on to learn species with higher numbers.
Boy was I surprised when I saw Ruby-crowned Kinglets at not one but four locations with seven seen at Connected Lake State Park. I didn’t think Ruby-crowned Kinglets are hardy enough to spend winter in Colorado. I based that fact on Midwesterners only having a slight chance of seeing one locally in winter. And since we basically see them only during migration I thought they migrated farther south.
The same can be said of the Wood Duck. In the Midwest they are usually gone by late November and start reappearing in early spring. I didn’t think they were on the same level as the Blue-winged Teal for early/late migration but earlier than most ducks. So when I encountered Wood Ducks at Connected Lakes that also caught me off guard.
So what gives?
Range maps provided surprising answers for each species.
Both winter just south of the Midwest and are year around residents in Western Colorado, something I hadn’t previously noticed. The Ruby-crowned Kinglet distribution shows it’s a year-round resident of the whole Great Basin. And the small circle in Western Colorado is where Wood Ducks are year-round residents.
These encounters once again prove I need to spend more time studying local birds beyond our area. What else I’m I missing about these species?