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

Recent content by Joern Lehmhus

  1. Joern Lehmhus

    Irish hybrid duck

    Hi pianoman, thanks, good to know... if you by chance know how to contact the photographer, please send me a PM...many thanks!
  2. Joern Lehmhus

    Irish hybrid duck

    I tried to contact Irish Birding on this, but so far no response ...maybe they are too busy ... Does anybody know the photographer ?
  3. Joern Lehmhus

    Small grey bird, Flanders, a few miles east of Brussels

    black redstart
  4. Joern Lehmhus

    Curruca crassirostris from Egypt?

    Not being a native speaker, I have some English words I always misspell when I type fast... possibly the same effect? But sounds funny, like Hypocolius on steroids...or some superhero bird ... ...Beware of the Hypercolius, demon bird of doom!;)
  5. Joern Lehmhus

    Irish hybrid duck

    Attached a German hybrid and a captive hybrid of this combination from UK in this paper, showing part of the variation. The Irish bird seems even more colourful.... The paper also contains two photos of gadwall x shoveler for comparison.
  6. Joern Lehmhus

    Hello everyone - White Duck

    Well , those are pointers, but it is more complex ...Both domestic variants of mallard and a bit less so, also of muscovy , are quite variable...green speculum without or with reduced white borders can also be a pointer, pink elements in the bill coloration as well...
  7. Joern Lehmhus

    Irish hybrid duck

    https://www.irishbirding.com/birds/web/Display/sighting/169322/Baikal_Teal.html I seriously doubt the proposed identifications , I think this is Northern shoveler x Eurasian teal
  8. Joern Lehmhus

    Hello everyone - White Duck

    Domestic duck (wild ancestor: mallard) x domestic muscovy duck hybrid ....
  9. Joern Lehmhus

    Peregrine?

    I agree colourwise it looks much better for hobby...but it is a very blurry photo... BUT as you do not know what it is actually doing with its wings just at the moment of photo, I wouldn´t count that pro peregrine ... If the wings are in a position like this...
  10. Joern Lehmhus

    North Sea Migrant

    https://previews.agefotostock.com/previewimage/medibigoff/6621cf9685fa1ef154da5441c10494ea/ssj-114397.jpg https://media.featherbase.info/images/739c66c7-3393-4830-b2b1-026dba669a76_600.jpg
  11. Joern Lehmhus

    North Sea Migrant

    It is a tail of Great spotted woodpecker, red are the undertail coverts, and what is stained pale brown here is white in fresh feathers. (such staining occurs through contact with decaying wood)
  12. Joern Lehmhus

    Limburg Netherlands - Flamingo but which one?

    Hope the photos are directly seen if I post them separately? roseus x chilensis? Probable Chilean x Greater flamingo (Phoenicopterus chilensis x Phoenicopterus roseus), Hannover Erlebniszoo, Lower Saxony, Germany, 06-01-22 Probable Chilean x Greater flamingo (Phoenicopterus chilensis x...
  13. Joern Lehmhus

    Limburg Netherlands - Flamingo but which one?

    While i have not enough experience with separating non-adult birds and can´t give much help on the original problem, I think the Zwillbrocker Venn problem is not that large ( but that is personal view) and might be solved with removing Chilean Flamingoes. But with the Zoos I have a real issue...
  14. Joern Lehmhus

    Mallard (I think)? American Black Duck? Hybrid?

    some examples : birds with Mallard and American black duck genes, that seem to be a bit more on the Mallard side: https://www.birds.cornell.edu/crows/images/MallardBlackDuck589a.jpg...
  15. Joern Lehmhus

    Mallard (I think)? American Black Duck? Hybrid?

    Please , do you have any pictures showing bill pattern and color? it could be a bird with an intersex plumage ( mostly old females ) , but it might also be a mallard with some American black duck genes - not a first generation cross, but these hybrids are fertile and can backcross to either parent.
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