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

Recent content by rb_stern

  1. rb_stern

    Servicing a 773 and eyepiece?

    I have had a Kowa 773 and 25-60x eyepiece for years. It has had its fair share of falls and knocks, but still works well. Over the last year or so the overall view has got a bit dark, and there are brownish "floaters" particularly at magnifications of 40x and over. Is it worth sending it off for...
  2. rb_stern

    Kowa 883 - best arca swiss plate?

    I have a gimbal head mounted on a tripod, and a camera lens with a foot that fits nicely into the arca-swiss clamp on the gimbal. Now I want to fit my Kowa 773 scope into that arca-swiss clamp., and use the scope on the gimbal like a camera with a long lens. I was using a Manfrotto tripod with...
  3. Bare-legged owl (now re-named Cuban Screech owl)

    Bare-legged owl (now re-named Cuban Screech owl)

    This species in a nest hole. Shown to us by a local naturalist.
    • rb_stern
    • Media item
    • 1bb bare-legged owl cuba margarobyas lawrencii
    • Comments: 8
    • Category: The Caribbean
  4. rb_stern

    Best App for Android in Costa Rica

    I'm looking for a good ID Android app for my phone while birding soon in Costa Rica. There are 3 listed in the Google Play store. Costa Rica Birds had many bad reviews with various problems, Bird Data Costa Rica looks excellent but there are no reviews yet, and although it's free there are "in...
  5. rb_stern

    Gull, London Wetland Centre, 1 Dec. 2019

    Thanks. It's what I thought at the time but needed further opinions. Richard
  6. rb_stern

    Gull, London Wetland Centre, 1 Dec. 2019

    Gull - dark eye, yellow legs. Size hard to assess because of distance, and kept separate from B-H and Herring gulls. Didn't seem to fit Common, Ring-billed or Y-legged. Didn't have a scope. I was visiting from Canada, and I'm not hugely familiar with the variation in British/ European gulls...
  7. rb_stern

    2 from Nova Scotia

    I think an Arctic should have a shorter and darker bill, and the color of the primaries could be an effect of the bright sun. I actually thought the bill was long enough and pale enough to be a Forster's, and there are currently many winter plumaged Forster's in the area, some of which are...
  8. rb_stern

    2 from Nova Scotia

    An Eastern wood pewee would have a darker and less rounded head and less of an eye ring. I'm sure it's an Empid of some kind, but I'm wondering which.
  9. rb_stern

    2 from Nova Scotia

    2 birds in Nova Scotia a few days after Hurricane Dorian passed through, so anything is possible! Thanks for any ideas. 1). Common or Forster's tern? 2). An empid. flycatcher in coastal bushes that gave a single liquid "whit" note. Looks like Least.
  10. rb_stern

    ?sparrow, central Maine, USA

    1st. winter plumage Chipping Sparrow.
  11. Bald Eagle diving

    Bald Eagle diving

    Adult Bald Eagle diving onto fish in a local wetland. Kentville, NS, Canada, 8/2019
    • rb_stern
    • Media item
    • Comments: 3
    • Category: North America
  12. Red-eyed Vireo

    Red-eyed Vireo

    Kentville, NS, Canada, 1/09/2019. Adult with red eye and almost no yellow on underside. TFL, Richard
    • rb_stern
    • Media item
    • vireo olivaceus
    • Comments: 2
    • Category: North America
  13. Common Yellowthroat

    Common Yellowthroat

    Juv. or female, Kentville, NS, Canada, 1 Sept. 2019
    • rb_stern
    • Media item
    • geothlypis trichas
    • Comments: 3
    • Category: North America
  14. rb_stern

    Calidris sp. in Nova Scotia - possible Little Stint?

    Thanks folks. I'll pass that on to Dave. Richard
  15. rb_stern

    1st W. gull ID ,Nova Scotia, 11/2006

    Thanks Thanks folks. Richard
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