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

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  1. J

    Warbler? North east Pa., 5/20/14

    No harm, just curious. I just think that those non-contentious ones are thoroughly confirmed with a couple of replies. Anything beyond that seems to be an attempt to pad the post count, especially when those superfluous confirmations don't add any information. If they actually explained to...
  2. J

    Another Flycatcher? Canada

    I would lean toward Least, but I would also leave this unidentified.
  3. J

    Warbler? North east Pa., 5/20/14

    I'd expect even a young male to show more black in the face. I'd call this a female. Aside: why do we feel the need to say "yes, it is that species that you thought it was" four times in a thread? Are we that attached to post counts?
  4. J

    Something brown, yellow and white. Massachusetts USA

    Are we sure it's not a young male? That last blurry photo seems to show black on the face. Otherwise, colours look better for female.
  5. J

    Need help with identification

    I watched it on a phone, so the birds are pretty small. But every bird I did look at closely was a Turkey Vulture.
  6. J

    Usa Bird

    I think the only thing you can say for sure is that it's hardly a lifer.
  7. J

    Zapata - guide?

    I've read in some reports that a guide is required to access some parts of Zapata, but other reports make no mention of it. Does anyone know the rules? Which locations require a guide?
    • jaco
    • Thread
    • Replies: 2
    • Forum: Cuba
  8. J

    various, USA, New Mexico & Arizona

    Where is the Okinagen Valley?
  9. J

    White heron/egret

    Agree that it's not a Great Egret.
  10. J

    Eurasian raptor

    Unsure of the location, sorry.
  11. J

    Eurasian raptor

    Not my photo: http://www.flickr.com/photos/7147112@N05/4078499295/in/photolist-7dpnKn-e3v3cr-e3AH1h-e3v3i6-e3AGT1 What's the raptor?
  12. J

    Cliff Swallows may be evolving to dodge traffic

    The same reason my kid wouldn't inherit my large muscles if I took up weightlifting. The same reason a Jewish kid isn't born circumcised.
  13. J

    Cliff Swallows may be evolving to dodge traffic

    You can beg to differ all you like, but your example, without a demonstration of heritability, is absolutely nothing like what the authors of the swallow paper are suggesting. Oh well. I'll drop it.
  14. J

    Cliff Swallows may be evolving to dodge traffic

    I get it, but it's not really analogous at all. Unless there was evidence of heritability of that feature, there was no evidence of selection in the human/auk example.
  15. J

    Cliff Swallows may be evolving to dodge traffic

    That human/auk example sounds more like phenotypic plasticity than evolution. In your reference, was there any mention of inheritance? A group of people subjected to a particular exercise regime will experience a set of morphological changes that another group will not. We all know that. I...
  16. J

    Egret, Florida, USA

    I don't know about Reddish Egret - looks like a Little Blue Heron to me. Immature LBHE have a lighter base and darker tip to their bills. Plus, as you said, the greenish legs.
  17. J

    Swallow in Death Valley National Park, California, USA

    That said, the wing to tail on this bird is consistent with Violet-green! But that throat is clearly coloured and contrasts with the belly/vent. I don't know.
  18. J

    Swallow in Death Valley National Park, California, USA

    I like Rough-wing for this bird. I don't see why the wing to tail ratio would suggest one of Tree or Violet-green; those two species are nothing alike in that regard. In fact, a relatively short tail is one way to separate Violet-green from Tree.
  19. J

    arenal costa rica hummingbird

    The plumeleteer does not have a rufous tail. The OP might want to invest in a field guide!
  20. J

    Waders - Tobago

    Agree with Lesser. This bird looks more like a Common Redshank than it does a Greater!
  21. J

    What Sparrow is this - Michigan ?

    Song Sparrow, but I see what you mean - the head/bill slope/proportions do look a little peculiar. Something more typical of an Ammodramus, maybe.
  22. J

    My Friend thinks I know something-help on ID

    Fair enough. I do find it peculiar that so few birders would at least have a superficial understanding of (or at least have heard of!) one of the most, if not THE most, successful citizen science projects in the world - one that caters to birders, no less. But that's just me.
  23. J

    My Friend thinks I know something-help on ID

    If you haven't heard of eBird, then you're living under a rock. eBird is mentioned time and time again in this very forum. I get that it's not so popular in the UK (it should be), but to say you've never heard of it is absurd. And a Mew Gull isn't just a Common Gull. Might want to study...
  24. J

    Questions for Ontario birders

    You probably shouldn't expect a Cerulean, but I guess anything is possible. Your best bet is to check eBird sometime in late June. If you want to see Piping Plovers, there are a couple pairs at nearby (relatively) Wasaga Beach.
  25. J

    RWBL with EUST beak? (Central PA)

    Red-winged Blackbirds and starlings are not in the same family.
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