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

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    Hawaii, anytime 2022

    Hello, I have just moved to Kauai to work on seabird conservation. I will be here until December 2022 or later and am interested in seeking all of the extant endemic birds of Hawaii (on Kauai, Oahu, Maui, and Hawaii Islands). Would be happy to plan weekend (maybe slightly longer) trip(s) to see...
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    Immature Common/Roseate Tern, New York, USA

    Nickerson Beach Park, Nassau County, Long Island, New York, USA June 4, 2019 Not sure if this is an immature Common Tern or Roseate Tern. Would appreciate help on this and tips on how to distinguish these two as first summer birds. Bill looks a bit on the thick side, favoring Common Tern, but...
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    Costa Rica Raptor

    Palo Verde National Park, Guanacaste, Costa Rica, March 19, 2019 Having trouble distinguishing between immature Gray-headed Kite, Collared Forest-Falcon, and maybe Bicolored Hawk on this bird. For what it's worth there was an adult Gray-headed Kite in the same area.
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    Costa Rica Hummingbird

    Palo Verde National Park dry forest, March 18, 2019 I know the shots are bad but seems like might be possible to work with. I'm seeing a fairly short bill, dark throat and upper breast, white belly, solid green upperparts. I considered Canivet's Emerald, Blue-throated Goldentail, Ruby-throated...
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    Tropical Pewee? Costa Rica

    Near Pocosol Biological Station, Alajuela, Costa Rica, March 16, 2019 Looks to me like Tropical Pewee, but I'd like to hear others' thoughts.
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    Costa Rica Thrush

    Pocosol Biological Station, Alajuela, Costa Rica, March 15, 2019 Observed this thrush which I noted had a yellowish bill and eyering, dark slaty cap and back, and pale underparts. I got these poor photos. Structurally looks like a Turdus to me rather than a Catharus nightingale thrush, and...
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    Costa Rica Seedeater/Seed-Finch

    March 14, 2019 at Pocosol Biological Station on the Caribbean slope of the Bosque Eterno de los Niños. Is this a Variable Seedeater or Thick-billed Seed-Finch?
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    Alaska, US: Canada/Cackling Goose & subspecies

    Hi all, These geese were photographed at the mouth of Ship Creek in Anchorage, Alaska, on June 2, 2018. I believe them to be Dusky Canada Geese (Branta canadensis occidentalis. However, this subspecies group (Dusky/Vancouver Canada Geese (occidentalis/fulva)) is flagged as rare in eBird, and...
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    Tree Field Guide Recommendations

    I'm wondering if anyone has any recommendations for a tree identification field guide for North America. In particular, I'm interested if anyone has had experience using the National Audubon Society Field Guide to Trees (Eastern Region), Golden Field Guides: Trees of North America, and/or...
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    North American Tree ID Guide Recommendations

    My apologies if this is not the right forum for this, but I'm wondering if anyone has any recommendations for a tree identification field guide for North America. In particular, I'm interested if anyone has had experience using the National Audubon Society Field Guide to Trees (Eastern Region)...
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    Loon in California, USA

    On the Pacific Ocean right off the coast of Santa Barbara, California, on June 14, 2017 I don't see the dark half-collar of Common Loon, so is it safe to call a Pacific Loon?
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    Herring/Lesser Black-backed Gull - New York, USA

    Breezy Point, Queens, New York City, on June 8, 2017
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    Bleached Gull, California USA

    Goleta Beach Park, Santa Barbara, Southern California on June 13, 2017 By structure it's safe to say it's either a Glaucous-winged Gull, a Western Gull, or a hybrid of the two. Given that the bird is so bleached, is it safe to rule out Western Gull purely by how white it is, or is this level of...
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    Italy - Italian Sparrow or Eurasian Tree Sparrow

    Central Italy - not sure if these are the same or different birds (1st and third photos are same bird)
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    Northern Italy Birding

    I'll be traveling by car from France to Croatia sometime around June 30 and July 1, passing through northern Italy on the way. I'll have 36 hours in Italy and my aunt, who will be driving, is asking where I'd like to go. She said: "We can do almost anything in Northern Italy. Rome is too far as...
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