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Message: <blockquote data-quote="l_raty" data-source="post: 2919976" data-attributes="member: 24811">The two elwesi samples are respectively (roughly) 130 km N of, and 80 km NE of Lhasa.(I think "that circular shape" is the Gobi desert.)I've attached a cox1 tree (all Alaudidae; I may already have posted a similar tree in the past). All the Eremophila groups are represented to the exception of atlas, I think: one bilopha from Tunisia (appears basal here, but support is low); then a closely tight group with two sequences from Norway (= flava), three from Tuva/Mongolia (= brandti) and four sequences from USA/Canada (= alpestris); one sample from Iran (= penicillata); and finally a bunch of sequences from Tibet, which presumably represent the elwesi clade. Most of these Tibetan sequences are from:Qu Y., Lei F., Zhang R., Lu X. (2009): Comparative phylogeography of five avian species: implications for Pleistocene evolutionary history in the Qinghai-Tibetan plateau. Mol. Ecol. 19: 338–351. [<a href="http://rsr.csdb.cn/serverfiles/csdb/paper/upload/20101118/201011181040108228.pdf" target="_blank">pdf</a>]The sampling locations for Horned Larks in this paper are shown on Fig. 1(d) - West, Central & East Tibet, West & East Qinghai, South Gansu. All the sequences from these locations are very similar, thus this presumably gives us a minimum range for the elwesi group.</blockquote>