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Red-backed Shrike 紅背伯勞

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Original posted by gary at 9/10/2008 19:47
Speaking about the bird,
Refering to guide book, Brown should be 2cm larger than Red-backed, a 10 % size difference which should be notable in the field.
Could someone lucky to have seen the bird tell ...
i cannot tell the difference in size between this bird and the brown shrikes i've seen before. Very similar in size.
But my guide books says brown shrike is 19-20cm (birds of South-East Asia) or 20cm (birds of hk and S china, Field guide to the birds of china),
and Red-backed is 19cm (Field guide to the birds of china).
The field guides may not be correct enough, as yours and mine all show slightly different values.

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