[Tweeters] Horned Lark Subspecies in Okanogan Co. & Waterville Plateau

Vincent Lucas vincentlucas5 at gmail.com
Tue Feb 19 13:53:00 PST 2013


OK, here's another subspecies question. On the WOS fieldtrip to the
Okanogan & Waterville Plateau over the weekend, we saw at least two very
different subspecies of Horned Lark, one with yellow throat and another
with white or extremely pale throat. I believe the white-throated one is
Eremophila alpestris arcticola from northwest Canada & Alaska but what
about the yellow-throated one? Shep Thorp believes it to be Eremophila
alpestris alpina and according to Wahl et al., _ Birds of Washington _, the
type locality for this subspecies is Skamania County. Thus, I'm not sure
that this is the subspecies we saw on the Waterville Plateau so I'm asking
for assistance. Here is a list of the 21 subspecies of Horned Lark known in
North America. I can find little information on most of these subspecies.
Does anyone have any other info that is more illuminating?

Eremophila alpestris actia (Oberholser, 1902)
Eremophila alpestris adusta (Dwight, 1890)
Eremophila alpestris alpestris (Linnaeus, 1758)
Eremophila alpestris alpina (Jewett, 1943)
Eremophila alpestris ammophila (Oberholser, 1902)
Eremophila alpestris arcticola (Oberholser, 1902)
Eremophila alpestris enertera (Oberholser, 1907)
Eremophila alpestris enthymia (Oberholser, 1902)
Eremophila alpestris giraudi (Henshaw, 1884)
Eremophila alpestris hoyti (Bishop, 1896)
Eremophila alpestris insularis (Dwight, 1890)
Eremophila alpestris lamprochroma (Oberholser, 1932)
Eremophila alpestris leucansiptila (Oberholser, 1902)
Eremophila alpestris leucolaema Coues, 1874
Eremophila alpestris merrilli (Dwight, 1890)
Eremophila alpestris occidentalis (McCall, 1851)
Eremophila alpestris praticola (Henshaw, 1884)
Eremophila alpestris rubea (Henshaw, 1884)
Eremophila alpestris sierrae (Oberholser, 1920)
Eremophila alpestris strigata (Henshaw, 1884)
Eremophila alpestris utahensis (Behle, 1938)
Eremophila bilopha (Temminck, 1823)

Lastly, here is a recent eBird report from Joint Base Lewis-McChord (JBLM):

Horned Lark (Western rufous Group) - Pierce Co. - 19 Feb
2 Horned Lark (Western rufous Group) was observed at a personal location on
19 Feb, 2013

By "Western rufous Group", would that make the subspecies E. a. rubea? Does
anyone know for sure what Horned Lark subspecies is found on the JBLM and
how one would go about obtaining permission (permit) to see these birds on
the base?

Sorry for being so long-winded. Thanks.

Vince

--
Vincent Lucas
Sequim, WA
vincentlucas5 at gmail.com
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