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

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    Juvenile/Second-year Frigatebird, Tainan Taiwan May 2020

    Hi Steve, I had always thought that the breast tabs were not remnants of the breast band but evolved independently of it and are in any case positioned slightly lower. I may be wrong. They are in any case still present in 3rd year birds according to the table, so presumably not just a remnant...
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    Juvenile/Second-year Frigatebird, Tainan Taiwan May 2020

    It might be an idea to consult David James on this - you can contact him at [email protected]. He was very helpful indeed with my own chance sighting of CIF in Malaysia. I thought it might be rare in Taiwan but I didn't know it would be that rare. However, your images are of a very high...
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    Juvenile/Second-year Frigatebird, Tainan Taiwan May 2020

    I believe it's a 2nd-year Christmas Island - buff head, lack of a breastband and lack of axiliary spurs makes it 2nd year, plus the diagnostic black breast "tabs" and heart-shaped belly patch make it CI. See plate 20 and the table on p.37 here...
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