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


  1. Tundra Bean-Goose

    Tundra Bean-Goose

    Very tame hanging out near but not associating with domestic geese and Canada Geese. First found by Jon Feenstra near Lancaster 6 March 2023 and remaining in the area at Apollo Park through 8 July 2023 where it became quite tame. Dan Singer and I looked unsuccessfully for it on 10 July but it...
  2. California Thrasher

    California Thrasher

    This shy terrestrial species usually remains hidden in the Chaparral except when singing as was the case here. Both males and females sing and mimic other species in their songs. It is the largest of the world's thrashers and has a range restricted to California and Baja.
  3. Tricolored Heron video.

    Tricolored Heron video.

    Tricolored Heron (Egretta tricolor) video. 21 April 2023. Birding and Nature Center, South Padre Is., Texas, USA.
  4. Red Knot

    Red Knot

    Learning that Ron Thorn and Leonie Batkin had seen several knots in the impoundment behind the Radio Road dog park in Redwood Shores, I decided to try for them this morning at high tide. I met Ron and Leonie there and Ron kindly pointed out some distant knots in his spotting scope. I decided...
  5. American Avocet

    American Avocet

    First one I've seen. In a shallow pond with many other waders and ducks.
  6. Spotted Towhee

    Spotted Towhee

    Spotted Towhee (Pipilo maculatus montanus)
  7. Lazuli Bunting (male)

    Lazuli Bunting (male)

    Lazuli Bunting (Passerina amoena) male.
  8. Blue-tipped Dancer male

    Blue-tipped Dancer male

    Blue-tipped Dancer (Argia tibialis: Coenagrionidae) male. 3.0-3.8 cm (1.2-1.5 in) long.
  9. Baltimore Oriole, immature-3

    Baltimore Oriole, immature-3

    Singing his little heart out.
  10. Bald Eagle-Imm

    Bald Eagle-Imm

    Three of these were soaring about 40' overhead as they circled into a deer carcass.
  11. Good Luck Bird

    Good Luck Bird

    Red-winged Blackbird. Lots of them around. Supposed to mean good luck :)
  12. Beaver-2


    Cruising the edge of the river along the cattails
  13. Black-footed Albatross

    Black-footed Albatross

    A young adult in flight showing whitish primary shafts. Note the dark tail coverts indicating a young adult. Older adults have the tail coverts white.
  14. Inca Dove

    Inca Dove

    Centered in Mexico, this species has expanded its range in all directions in recent decades They are usually found around human dwellings foraging on the ground. This one was visiting a feeder of seed scattered on the ground. The name "Inca" appears to be a misnomer as this species does not...
  15. Black-chinned Hummingbird

    Black-chinned Hummingbird

    This species is the Western North American counterpart of the widespread Ruby-throated Hummingbird of the Eastern U.S. Black-chinned was by far the most common hummingbird we encountered on our recent visit to the Texas Hill country. This is an adult male, showing the purple-blue iridescence...
  16. Scissor-tailed Flycatcher

    Scissor-tailed Flycatcher

    This is one of a small flock of these striking flycatchers we encountered foraging along a roadside fence. They had no difficulty perching on the nasty looking barbed wire. This is an adult showing deep blood-red underwing coverts and salmon-pink colored flanks. Females average smaller than...
  17. White-tipped Dove

    White-tipped Dove

    This is a shy species, more often heard than seen. This one was attracted to a feeding station where we were able to photograph it from a blind. Notice the red legs and unmarked face and neck. In the US, this species was formerly confined to extreme southern Texas but has expanded northward...
  18. Black-capped Vireo

    Black-capped Vireo

    This near endemic of scrubby areas in the Texas Hill Country was one of our targets. This distinctive species is notoriously difficult to see. We found that seeing them involved more extensive climbing and bushwhacking than we were able to do. So we made a special visit to Lost Maples where...
  19. Fly by

    Fly by

    Red-tailed Hawk
  20. Tersa Sphinx Moth

    Tersa Sphinx Moth

    Tersa Sphinx (Xylophanes tersa: Sphingidae) Wingspan: 6.0-7.9 cm (2.4-3.2 in).
  21. American Coot

    American Coot

    American Coot (Fulica americana americana)
  22. Cliff Swallows

    Cliff Swallows

    Cliff Swallows (Petrochelidon pyrrhonota gainieri)
  23. Cliff Swallow

    Cliff Swallow

    Cliff Swallow (Petrochelidon pyrrhonota gainieri)
  24. Cliff Swallows

    Cliff Swallows

    Cliff Swallows (Petrochelidon pyrrhonota ganieri)
  25. Blueberry Bee

    Blueberry Bee

    Blueberry Bee (Osmia ribifloris: Megachilidae) Foraging on Texas Thistle.