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

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  1. JustinJansen

    Hydrornis oatesi deborah (King, BF, 1978)

    To inform Ben F. King died two days ago, per Facebook (Dale Dyer).
  2. JustinJansen

    Subspecies groups and future splits

    We already asking for years to do genetics of both 'toulsoni' and 'fuscobrunneus' but so far now-one picked up this (both Gerald and I can't). We worked our way through museums collections in the past years, and as indicated in our article we found some swifts that are identified incorrectly...
  3. JustinJansen

    HBW-BirdLife Version 8.0 (December 2023)

    As it is still regarded at this moment as valid (so that leaves us with no other choice to consider this in 2020 and even today), we advocated afterwards (and published as such in 2021) that Moorea Sandpiper is invalid. For our reasons why it is not valid see the article.
  4. JustinJansen

    HBW-BirdLife Version 8.0 (December 2023)

    Dear Fred, very well aware of these articles (co-author of the first), but see.
  5. JustinJansen

    HBW-BirdLife Version 8.0 (December 2023)

    Moorea Sandpiper Prosobonia ellisi is listed as described by (Gmelin 1789) but this is Sharpe 1906. And still surprised they regard it as valid.....
  6. JustinJansen

    Alcedinidae

    Gmelin described merely birds from Latham, so would it be mentioned in Latham?
  7. JustinJansen

    Amazona dufresniana (Shaw, 1812) and others

    Louis Dufresne was head of the Zoological Laboratories in MNHN, a position held until his death on 11 October 1832. He died after a fever resulting from inflammation of the lungs.
  8. JustinJansen

    Subspecies groups and future splits

    As in your list recognised by Dutch Birding = CSNA (as CSNA is the taxonomic committee).
  9. JustinJansen

    Subspecies groups and future splits

    Egrets are well known in British kitchens until the 16th century. Even in the act for Preservation of Grain of 1564 they are mentioned. And the breeding is mentioned by the Bishop of Salisbury in the early 15th century. For this and more see Michael Shrubb's book Feasting, Fowling and Feathers...
  10. JustinJansen

    Minor on Chloris kittlitzi (Seebohm, 1890) and others

    In Dutch, but sure also in German language often, and I'm sure in Dutch, a name like van der Elzen, or de Ruiter has nothing at all to do with nobility...... it (van der and de as example) is part of the surname.
  11. JustinJansen

    Minor on Chloris kittlitzi (Seebohm, 1890) and others

    Just an odd question: as this is obviously von Kittlitz, why is only Kittlitz used, in the descriptions for new species as in post #1?
  12. JustinJansen

    Gruiformes and Charadriiformes

    We luckily sampled four specimens and a single egg.
  13. JustinJansen

    Gruiformes and Charadriiformes

    Took a few years, but finally it is published today: Megafaunal extinctions, not climate change, may explain Holocene genetic diversity declines in Numenius shorebirds
  14. JustinJansen

    ABA podcast with Peter Pyle

    He is right on subspecies, Amadon provided a perfect paper to draw a line (think that is the 75% mentioned above), albeit not used much unfortunately.
  15. JustinJansen

    Apodidae

    In both Bremen as Leiden there is no Horus Swift at all in the collection. And the Torino bird not a type (as in the article and also Luca Ghiraldi in litt.)
  16. JustinJansen

    Apodidae

    Thanks for the compliment! In Heuglins article he mentioned a specimen(s) in the Museum at Stuttgart from South Africa. So that's why I assumed that the type is from South Africa and that's the only traceable specimen I knew (before today). Clear also from your research that in Torino (I...
  17. JustinJansen

    Apodidae

    Exactly!
  18. JustinJansen

    Apodidae

    We suggested in our latest article a lump of Apus horus fuscobrunneus with Apus h horus.
  19. JustinJansen

    Laridae

    How large is their sample, and do they show the variation in all species?
  20. JustinJansen

    Some "unseen" descriptions … now seen!

    He married the Australian born Veronica in 1962 in Perth, but returned to The Netherlands to become curator at the Leiden collection in 1963. He retired in 1991 and went a year later back to Australia and remained here ever since (Voous, K H 1995. In de Ban van Vogels. Huizen, pp: 351-353). So...
  21. JustinJansen

    Who was Mace?

    The other two pages of the documented started above (as requested by Paul, does mention Reunion not Madagascar).
  22. JustinJansen

    Who was Mace?

    Two autographs by him.
  23. JustinJansen

    Who was Mace?

    This is a file, not yet, worked though, I received from Anthony Cheke a little while ago.
  24. JustinJansen

    Who was Mace?

    It means after 1803, I could not find when he died, could only find that he was still alive in 1803
  25. JustinJansen

    AOU-NACC Proposals 2022

    Did check both birds just now (have photographs here), both have a the pedestal underside as on the label in front of the specimen written St Thomas, and have both the name dominicus as aurulentus written on both labels.
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