Richard Klim
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Great Grey Shrike
http://www.sciencedirect.com/scienc...serid=10&md5=02cffc31405f40e92edb2495dbab43ff
Further work is needed to determine the best final arrangement for the excubitor complex, but L. meridionalis is better treated as monotypic (as by Svensson et al, and Dutch Birding). [Pallidirostris may end up as a subspecies of L. lahtora.] Svensson et al's novel split of L. borealis Northern Shrike (p420) is probably also justified.
Richard
PS. For clarity, a possible treatment suggested by Olsson et al is:
The recognition by most authorities of a widespread polytypic Lanius meridionalis 'Southern Grey Shrike', including pallidirostris 'Steppe Grey Shrike', has recently been shown to be erroneous, eg, Olsson et al 2009:I'm a bit confused over the treatment of 'Steppe' Grey Shrike.
http://www.sciencedirect.com/scienc...serid=10&md5=02cffc31405f40e92edb2495dbab43ff
Further work is needed to determine the best final arrangement for the excubitor complex, but L. meridionalis is better treated as monotypic (as by Svensson et al, and Dutch Birding). [Pallidirostris may end up as a subspecies of L. lahtora.] Svensson et al's novel split of L. borealis Northern Shrike (p420) is probably also justified.
Richard
PS. For clarity, a possible treatment suggested by Olsson et al is:
- L. lahtora - Indian Grey Shrike (including aucheri, theresae, buryi, pallidirostris)
- L. excubitor - Great Grey Shrike (including homeyeri, 'leucopterus')
- L. elegans - Desert Grey Shrike (including koenigi, algeriensis, leucopygos, 'jebelmarrae')
- L. uncinatus - Socotra Grey Shrike (monotypic)
- L. borealis - Northern Shrike (including invictus, sibiricus, bianchii, mollis, funereus)
- L. meridionalis - Iberian Grey Shrike (monotypic)
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