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Recent content by RafaelMatias

  1. RafaelMatias

    Yellow Wags migrating: video

    Indeed. It's really impressive how close to the waves they are.
  2. RafaelMatias

    Yellow Wags migrating: video

    Amazing video of Yellow Wagtails migrating at night over the sea from the UK to Northern Spain. Mesmerizing. Filmed 120km N of Santander from a vessel, last 16th September (perhaps this has been posted elsewhere, if so appologies).
  3. RafaelMatias

    Warbler, Northern Greece

    To me it looks like it may be sunning, but I don't see any obvious evidence of wet plumage (not at all to be honest). It may also be that it was photographed in the split second before taking off (or just as it's taking off), hence the blurred bits. Just speculation. Spotted Fly regardless.
  4. RafaelMatias

    Warbler, Northern Greece

    I don't see signs of bathing, unfortunately.
  5. RafaelMatias

    Warbler, Northern Greece

    By the head (shape, pattern, colour).
  6. RafaelMatias

    Warbler, Northern Greece

    Agree with this. Also the tiny feet rule out warblers, and being dark adds to it. Spotted Fly.
  7. RafaelMatias

    Panama fruit feeder

    I think there was sort of one in the Cornell website where the livefeed is (was?) also available, but I haven't checked lately.
  8. RafaelMatias

    New paper: Navigation by extrapolation of geomagnetic cues in a migratory songbird

    I'd think so, yes. I'd also think that if a migrating bird's natural capacity of sensing magnetic cues is impaired (due to anthropogenic factors for example, or from a natural disease or an unfortunate mutation) then you may have it getting badly lost. There's definitely some clear...
  9. RafaelMatias

    Butterflies - Kenya

    And the 2nd is probably Guineafowl Butterfly (Hamanumida daedalus), a Nymphalid.
  10. RafaelMatias

    Panama fruit feeder

    Some more info on the species there in this thread: https://www.birdforum.net/threads/live-cornell-lab-panama-webcam-canopy-lodge.356392/
  11. RafaelMatias

    What is that ?

    Hello Edwin, thanks for your enhanced photos. It's interesting how our judgement can be subjective and our perception is probably based on previous experience. For me the photos just show/confirm the 'thingy' is in fact a feather, and the whole structure can be seen there with care, albeit in a...
  12. RafaelMatias

    What is that ?

    I agree with this. It's a misplaced feather that is just looking as translucent with the light shining through. Note the base of this "appendage" is exactly the same colour as the lower belly/undertail patch (with a bit of grey on the presumed outer web), and only gets the rosy/salmon 'colour'...
  13. RafaelMatias

    Book for European insects?

    I have the funny feeling that either you didn't read my posts above, or that my ability to express myself in English is rather poor. Re (from post #4): I can add that not even all families are represented in the book, but those are neglectable from a beginners point of view. I do look at...
  14. RafaelMatias

    Book for European insects?

    As jurek says, and I've said above, the book is oriented to field ID of conspicuous and identifiable species in the field, which is what the OP is looking for. There is no better single book, the alternative being to buy dozens (hundreds?) of little and very expensive books for each family. Your...
  15. RafaelMatias

    New to the Group, Dallas ID

    Looks similarly impressive in this recent video as well (I believe in Oklahoma):
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