Fox Sparrow was moved to its position above juncos a while ago,
but what you are noticing is that American Tree Sparrow has been moved.
ABA does not include _Arremon_ so it looks like Fox Sparrow has
been sandwiched in between all the _Spizella_, when the real news
is that American Tree Sparrow is more distantly related to other
_Spizella_ than previously thought.
According to: http://checklist.aou.org/taxa
genus: Spizella
species: Spizella passerina (Chipping Sparrow)
species: Spizella pallida (Clay-colored Sparrow)
species: Spizella atrogularis (Blk-ch Sparrow)
species: Spizella pusilla (Field Sparrow)
species: Spizella breweri (Brewer's Sparrow)
species: Spizella wortheni (Worthen's Sparrow)
genus: Arremon
species: Arremon costaricensis (Costa Rican Brushfinch)
species: Arremon atricapillus (Black-headed Brushfinch)
species: Arremon aurantiirostris (Orange-billed Sparrow)
species: Arremon virenticeps (Green-striped Brushfinch)
species: Arremon brunneinucha (Chestnut-capped Brushfinch)
species: Arremon crassirostris (Sooty-faced Finch)
genus: Passerella
species: Passerella iliaca (Fox Sparrow)
genus: Spizelloides
species: Spizelloides arborea (Am Tree Sparrow)
genus: Junco
species: Junco vulcani (Volcano Junco)
species: Junco insularis (Guadalupe Junco)
species: Junco hyemalis (Dark-eyed Junco)
species: Junco phaeonotus (Yellow-eyed Junco)
species: Junco bairdi (Baird's Junco)
--
Mike Patterson
Astoria, OR
Lies, Damned Lies and Statistical Significance
http://www.surfbirds.com/community-blogs/northcoastdiaries/?p=3761
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