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

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  1. djringer

    SACC - a move away from IOC

    Not an issue for the South American Checklist Committee because no divers/loons appear on the SACC list.
  2. djringer

    Passer montanus

    I'm looking for information on the native range of the Eurasian Tree Sparrow (Passer montanus) in Indonesia. To which islands is it considered native, and where has it been introduced? I've been able to find only general statements so far, but it looks as if the species occurs naturally on only...
  3. djringer

    What do you base your world taxonomy on?

    I'm all for punctuational pedantry, but it seems a funny thing on which to base one's choice of a world list. If all other things were equal, it might be worth worrying about, but personally, I more concerned about having a taxonomy that's freely available in electronic form and isn't several...
  4. djringer

    What do you base your world taxonomy on?

    I tried to keep my own taxonomy for awhile but found it prohibitively time-consuming. Things changed for the better last year when the the International Ornithological Congress' World Bird Names project (also known as the Gill and Wright list) was made available online for free. It's updated...
  5. djringer

    some sort of sparrow in Dallas?

    It's a Dickcissel. Note the rufous 'shoulder' patch and yellow on face.
  6. djringer

    is this just a grackle? in Dallas, TX

    I have seen a couple of pale-eyed Boat-tailed Grackles on the Upper Texas Coast. It can happen. Also Boat-tails do occur inland a little ways in some places. For example, you can find them at Brazos Bend State Park, which is definitely more than "a couple of miles" from the Gulf, but still in...
  7. djringer

    ID for cormorant and a white water bird in Dallas, TX

    There could easily be Neotropic Cormorants around Dallas, though Double-cresteds are generally the more abundant species. I think this looks reasonable for Double-crested, though it's hard to ID to species from this photo because most of the details needed to clinch an ID are blurred, obscured...
  8. djringer

    Timor birds

    Mark, 1. Perfect, yes. Thanks. 2. OK. I figured that was probably the case, but I hadn't been able to find any reference to that feral population. 3. Makes sense, thanks for checking. David
  9. djringer

    Timor birds

    I was in West and East Timor earlier this year but did not have much chance for birding, much to my disappointment. I did see a few things along the way, but I don't have a book for the Lesser Sundas. So here are a couple of birds I haven't been able to identify: 1. A lorikeet in a forested...
  10. djringer

    ground-nesting species in Costa Rica

    Interesting, Eduardo, thanks. I did see several Yellowish Flycatchers of course, and I watched one building a mossy nest on a ledge of a boulder over a stream. My gut reaction is that the bird I glimpsed was too gray and cold-colored to have been a Yellowish Flycatcher (or a Tufted, for that...
  11. djringer

    ground-nesting species in Costa Rica

    In April, I birded Savegre Mountain Hotel in Costa Rica. I was walking one of the trails along a stream when I accidentally flushed a small, grayish passerine from right beside the path. As it flew, I saw a pale horizontal line along the length of each wing, but no other marks were visible, and...
  12. djringer

    Bogotá: Black vs. Glossy Flowerpiercer

    I recently observed a black flowerpiercer in Bogotá, Colombia. It showed a blue-gray shoulder patch. As far as I can tell, both Glossy and Black flowerpiercers in that part of Colombia do show the shoulder patches. Is there any good way to tell them apart? Birds of Northern South America, Vol 2...
  13. djringer

    Field guide for Paraguay?

    Are there any field guides that cover Paraguay? David
  14. djringer

    Cisticola in Cameroon (video clip)

    Thanks, xenospiza. David
  15. djringer

    Cisticola in Cameroon (video clip)

    This summer, I encountered a brown, nondescript warbler on the Ndop Plain in Northwest Province, Cameroon. It was my first trip to Africa, and the LBJs were a bit overwhelming. I thought this particular bird might be a Whistling Cisticola -- here's a video clip including song. Any thoughts? David
  16. djringer

    Comment by 'djringer' in media 'Brehm's Tiger-Parrot (female)'

    I believe the birds are called tiger-parrots because of the gold and black "stripes," which are created by dark feathers fringed with yellow. True, real tigers' stripes are vertical, not horizontal, but I guess someone thought this looked close enough. : )
  17. djringer

    Comment by 'djringer' in media 'Ribbon-tailed Astrapia'

    Zep and Megan, I've posted photos to BF that would be new for the database. You can see others by going to my blog (http://djringer.com/birding/) and selecting "Papua New Guinea" from "Locations" on the right. I don't have any friarbird photos, but I just posted some audio...
  18. djringer

    Comment by 'djringer' in media 'Yellow-throated Longclaw'

    I'm always struck by these birds' uncanny resemblance to North American meadowlarks....
  19. djringer

    Comment by 'djringer' in media 'Island Thrush (New Guinea)'

    You're welcome, Andy. I'm glad to be able to contribute. Adalia, the Island Thrush is listed as a species of least concern by the IUCN. Populations occur on islands from Taiwan to Samoa, and some of those populations are declining or extinct. However, this is not the case on New Guinea, as far...
  20. djringer

    Can you ID this New Guinea bird song? (audio file)

    It probably doesn't come across well in the recording, but this bird's voice had both "ringing" and "burry" qualities. As you pointed out, this is quite unlike the soft whistling songs of gerygones (or at least, gerygone songs or calls I'm familiar with). Gerygone ruficollis, of course, is the...
  21. djringer

    Can you ID this New Guinea bird song? (audio file)

    When I lived in Papua New Guinea last year, I heard a bird I couldn't identify singing in a valley in the Eastern Highlands Province. The elevation was approximately 1600 meters/1 mile. Habitat was human-altered (typical of the highland valleys), and the bird sang from the tops of tall trees...
  22. Brehm's Tiger-Parrot (female)

    Brehm's Tiger-Parrot (female)

    • djringer
    • Media item
    • brehm\'s tiger-parrot
    • Comments: 3
    • Category: Asia, Australia & Pacific Islands
  23. Brehm's Tiger-Parrot (male)

    Brehm's Tiger-Parrot (male)

    • djringer
    • Media item
    • brehm\'s tiger-parrot
    • Comments: 5
    • Category: Asia, Australia & Pacific Islands
  24. Island Thrush (New Guinea)

    Island Thrush (New Guinea)

    • djringer
    • Media item
    • enga province island thrush kumul lodge papua new guinea turdus poliocephalus
    • Comments: 3
    • Category: Asia, Australia & Pacific Islands
  25. djringer

    Comment by 'djringer' in media 'Brown Sicklebill'

    Oh yes, the male is really spectacular. He's glossy black and soft brown with iridescent turquoise and purple patches on the head and back. His tail is far longer than the female's, and his call sounds like arcade machine gun fire. But as you say, his mate is striking too!
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