Sycamore nuthatch? Not perfect, but has a nice ring to it.
“Eastern” would be fine by me (cf. - Bluebird, - Kingbird, - Wood-Pewee). I had actually listed it as Eastern White-breasted Nuthatch, which is quite cumbersome. For Asia “Oriental” is available in the not entirely hypothetical case some eastern nuthatch needs to be split.Fine with Pacific and Mexican, but I am not in favor of Great Basin. If I am reading this correctly, the range is much broader, and I wonder if Mountain or Rocky Mountain Might be a better name (Although open to alternatives)
For the eastern form, maybe Eastern? or is this more applicable to some of the East Asian forms? Really no clue here...
Yes, 'Mexican Nuthatch' Sitta lagunae represents the RGM (Rocky Mountain, Great Basin and Mexico) clade.I believe it's Mexican that is poorly named as far as extent of range goes - it's the one that goes right up the Rocky Mountains into southern Canada! Great Basin is at least more restricted, even if Mexican is also found in some of the southern Great Basin (in the geographical sense).
“Eastern” would be fine by me (cf. - Bluebird, - Kingbird, - Wood-Pewee).
I feel most of us are going to presume that Great Basin Nuthatch prefers some kind of aquatic habitats...
Although I find myself residing in the old world, in my book "Common" is a whole lot worse I have no problems with "Eastern" and "Western" if it refers to species groups or pairs restricted to the Americas.I don't really see how Americans using "eastern" and "western" in common names is any different from the proliferation of "common" in the old world.
"Slender-billed Nuthatch" would be a good name for tenuissima, if only the term had not been less appropriately used for aculeata for many years.
"Stout-billed Nuthatch" (or something like it), works for the Rocky Mt./Mexican clade, though getting less and less appropriate the further south they go.
Bent called I]tenuissima[/I] the "Inyo Nuthatch." For more fun with Arthur Bent:
http://www.birdzilla.com/birds/White-breasted-Nuthatch/bent_life_history.html
Joseph Grinnell named Sitta carolinensis tenuissima 'Inyo Slender-billed Nuthatch':Bent called tenuissima the "Inyo Nuthatch."
It has been years since I have thought of A.C. Bent. I still have the entire series stowed away in California. Who knows if they are worth anything...
Mlodinow 2014. Cryptic Species: The White-breasted Nuthatches. Birding 46(3): 26–32. [pdf]
Ted Floyd, aba blog, 22 Jul 2014: How Many Species of White-breasted Nuthatches?Mlodinow 2014. Cryptic Species: The White-breasted Nuthatches. Birding 46(3): 26–32. [pdf]