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

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  1. RafaelMatias

    Gulls - Cabo Raso, Portugal 19.10

    A relevant thread from Peter Alfrey here: https://www.birdforum.net/showthread.php?t=167311
  2. RafaelMatias

    Gulls - Cabo Raso, Portugal 19.10

    Just published on Dutch Birding (I haven't seen it): ADRIAENS P., ALFREY P., GIBBINS Chr., LÓPEZ-VELASCO D., 2020. Identification of Azores gull. Dutch Birding, 42 (5) : 303-334.
  3. RafaelMatias

    Gulls - Cabo Raso, Portugal 19.10

    Hi, sorry I cannot add anything really relevant to what's been said already on those very interesting posts above. Just some points: - Azorean YLG might not be a rarity on the Portuguese coast, but we just don't know that for sure because the picture is muddled due to many factors; it has never...
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