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

Recent content by Xenospiza

  1. Xenospiza

    Furnariidae

    Yes, which is enforced by list(er)s not mentioning them... so it's nice that ebird makes them available.
  2. Xenospiza

    Furnariidae

    I was in Camacan in January 2013 when they'd just been collecting the treehunter. We couldn't find it. The "Amazonian Spinetail" in SE Amazonia has also been left undescribed for over 10 years... Apparently there are two discoverers who cannot agree on publishing (that was my take on what our...
  3. Xenospiza

    Anatidae

    Phylogeography of Brent Geese: https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.11245
  4. Xenospiza

    Some small additions to HBW Key

    A Dutchman will always have been called Adriaan, but I don't expect anyone to write this name correctly in English...
  5. Xenospiza

    Some small additions to HBW Key

    Yes, the correct transcription of ישראל will be Jisrael in German and Yisrael in English; the translation will be Israel. So all initials are possible... The German wikipedia page uses "Israel" and notes his original last name (but only in the German transcription), which funnily is not...
  6. Xenospiza

    State of Hirundine passage this Spring?

    The migration data at Breskens (the Netherlands) for Barn and House Swallows look bad this year (50% and 75% of usual numbers, hourly averages worse). Sand Martin a bit better, although there were a few weeks with no migration at all (but migration at Breskens is very weather dependent)
  7. Xenospiza

    State of Hirundine passage this Spring?

    In the German town where I live, the local House Martin colonies are poorly populated, I am struggling to find Sand Martins and Barn Swallow also seems to have a meagre presence...
  8. Xenospiza

    Would you personally tick, given a highly unlikely alternative ID?

    In many cases it would be impossible to exclude something irregular about the bird that you are ticking. Could be a hybrid, could be an unlikely vagrant, could be an escape, etc. You cannot have a full DNA analysis run on every new bird you see.
  9. Xenospiza

    Green Listing 2024 - Joint Thread

    An attempt at Short-toed Eagle only gave me Common Tern...
  10. Xenospiza

    Green Listing 2024 - Joint Thread

    A Black Stork brightened up my day considerably. The 10th for my local patch (now seen in 5 out of 13 years). It's harder to get on the overall yearlist than Spoonbill, which I can always twitch along the Rhine if needed.
  11. Xenospiza

    Titi monkey Santuario do Caraca

    Apparently Black-fronted (nigrifrons) should be there, but your picture looks more like Masked (personatus). Confusion understandable... https://www.researchgate.net/figure/Geographical-distribution-of-titi-monkeys-Modified-from-Byrne-et-al-2016-Area-marked_fig1_323530016...
  12. Xenospiza

    Swallow species - Suriname

    Yes, correct.
  13. Xenospiza

    Phylogeny of birds

    You doi link (again) does not work: https://www.biorxiv.org/content/10.1101/2024.05.20.595017v1.full.pdf I assume the tree must be somewhere in here, but I don't understand how to find it: GitHub - McTavishLab/AvesData: Data deposit for Aves synthetic tree
  14. Xenospiza

    Green Listing 2024 - Joint Thread

    An even better bird over the local patch after work: an immature Spoonbill flying west! The second one I've seen at my local patch (one was reported last year, but without any indication if it was present or flying over: I dipped it anyway).
  15. Xenospiza

    Snipe and Dove from Mongolia

    I think the demarcation of black and white in the tail is so sharp that Hill is a safe conclusion.
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