Altai Black-throated Accentor
Prunella atrogularis menzbieri
Darker than atrogularis, the dark streaks on mantle are broader, flank-streaks are darker than in atrogularis. Bill is strong, bill length from nostrille is more than 7.5 mm (less then 7.5 mm in atrogularis). 2PM < 6PM (2PM >…
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