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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. G

    Stonechat, South-east Armenia Sept 2019

    The underwing pattern also confirms its rubicola, the black/blackish restricted to the primary underwing-coverts contrasting with greyish-white inner underwing coverts, while in Siberian/Eastern the underwing coverts would be solidly black. Grahame
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