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Carl T. Bergstrom

@carlbergstrom.com

Professor, UW Biology / Santa Fe Institute I study how information flows in biology, science, and society. Book: *Calling Bullshit*, http://tinyurl.com/fdcuvd7b LLM course: https://thebullshitmachines.com Corvids: https://tinyurl.com/mr2n5ymk he/him

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Latest posts by Carl T. Bergstrom @carlbergstrom.com

Not as intensively, but yes. The banded birds in this thread are species that number at most in the few thousands, largely transported to offshore predator-free islands where they have a better chance of surviving.

06.03.2026 20:59 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I like that approach.

06.03.2026 15:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Tui be continued...

06.03.2026 09:09 πŸ‘ 71 πŸ” 2 πŸ’¬ 2 πŸ“Œ 0
Grey bird hanging from a fern leaf

Grey bird hanging from a fern leaf

And here's a whitehead again, hanging from a tree fern frond. This guy was so entertaining that I almost missed the one and only boat back to the mainland.

06.03.2026 09:08 πŸ‘ 188 πŸ” 13 πŸ’¬ 2 πŸ“Œ 0

Yes. As always, I'm posting standard Clements checklist names. There's a strong argument for updating that list for pretty much all of the Aotearoa endemics, but that's a separate issue.

06.03.2026 09:04 πŸ‘ 7 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Oh my goodness. Great light!

06.03.2026 08:55 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Black-headed honeyeater with yellow plumage

Black-headed honeyeater with yellow plumage

Another super-rarity, the hihi or stitchbird. These birds struggle to survive without substantial support in the form of food supplementation and nest boxes, probably because of habitat differences between the forests they once inhabited and the predator-free offshore islands where they now hang on.

06.03.2026 08:46 πŸ‘ 120 πŸ” 7 πŸ’¬ 4 πŸ“Œ 0
Kōkako, a large grey songbird with blue wattles, on Tiritiri

Kōkako, a large grey songbird with blue wattles, on Tiritiri

When I headed to Aotearoa, I thought my top target passerine was the South Island saddleback. But I'd badly underestimated the North Island kōkako.

I've never heard such an extraordinary song. And they're so large and marvelous. Sadly I never got a great photo, but what a bird!

06.03.2026 08:40 πŸ‘ 126 πŸ” 8 πŸ’¬ 4 πŸ“Œ 0

Damn and out in the open too. I never got clear lines and good light on one the whole time I was there.

06.03.2026 08:28 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

As best as I know, Scandinavian bird photographers leaned into that before the rest of us. I love that look and have been trying to replicate it with limited success but I'm glad the basic effect comes through.

06.03.2026 08:26 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I don't think I got an adequate shot of one. Saw them on Ulva but that was about it...

06.03.2026 08:24 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Yes. Anything I post without explicit attribution is my own.

06.03.2026 08:23 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

My thought as well!

06.03.2026 07:20 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Small passerine on a fern tree leaf with, you guessed it, a white head.

Small passerine on a fern tree leaf with, you guessed it, a white head.

And this, of course, is the whitehead.

Don't look at me like that.

I'm not the one who named them.

06.03.2026 07:19 πŸ‘ 164 πŸ” 7 πŸ’¬ 7 πŸ“Œ 0
Post image

Another extremely rare New Zealand passerine, the yellowhead.

06.03.2026 06:51 πŸ‘ 232 πŸ” 15 πŸ’¬ 4 πŸ“Œ 3
Black bird with red wattles and a brown "saddle" in the forest.

Black bird with red wattles and a brown "saddle" in the forest.

Returning to the South Island again, here's a South Island adult.

06.03.2026 06:45 πŸ‘ 167 πŸ” 4 πŸ’¬ 1 πŸ“Œ 1

Same bird, shots taken 0.1 second apart.

06.03.2026 06:42 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Black bird with large red wattles and a brown back

Black bird with large red wattles and a brown back

Here is its North Island counterpart, the North Island saddleback. This one is an adult, photographed on Kapiti.

06.03.2026 06:39 πŸ‘ 177 πŸ” 10 πŸ’¬ 3 πŸ“Œ 1
Brown bird with small red wattles tossing a berry down the hatch

Brown bird with small red wattles tossing a berry down the hatch

Here's one of the rarer passerines on the planet, the South Island saddleback, photographed feeding on the island of Ulva in Rakiura National Park. This is a juvenile or "jackbird".

06.03.2026 06:38 πŸ‘ 188 πŸ” 6 πŸ’¬ 4 πŸ“Œ 1

Your comment hits home. I realized in Aotearoa New Zealand that I'm fucking furious about so many things β€” but the continual expression of anger to a likeminded few is probably not what we need right now so much as a reminder of everything worth fighting for.

06.03.2026 06:22 πŸ‘ 18 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
New Zealand bellbird shaking off the water

New Zealand bellbird shaking off the water

Sugaree πŸͺΆ

06.03.2026 06:20 πŸ‘ 225 πŸ” 10 πŸ’¬ 7 πŸ“Œ 0

OED accepts either; I went with the latinate.

06.03.2026 06:16 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I'm in here doing my best Lora!

06.03.2026 06:13 πŸ‘ 9 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Yellow bird with black face and red eye, all puffed out and slightly damp.

Yellow bird with black face and red eye, all puffed out and slightly damp.

Let me start a belated thread of Aotearoa New Zealand silvan birds.

To lead things off, a New Zealand Bellbird photographed on Kapiti Island.

06.03.2026 06:08 πŸ‘ 1290 πŸ” 239 πŸ’¬ 24 πŸ“Œ 20

I'm delighted that you found the course materials interesting! Thank you for posting.

04.03.2026 22:46 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It’s very hard to pick a single passage to give you a sense of just how fucked up this is.

04.03.2026 19:34 πŸ‘ 267 πŸ” 112 πŸ’¬ 8 πŸ“Œ 11
Preview
Large-scale online deanonymization with LLMs We show that large language models can be used to perform at-scale deanonymization. With full Internet access, our agent can re-identify Hacker News users and Anthropic Interviewer participants at hig...

Delete your socks, people.

"We show that large language models can be used to perform
at-scale deanonymization...at high precision, given pseudonymous online profiles and conversations alone, matching what would take hours for a dedicated human investigator."

04.03.2026 07:41 πŸ‘ 254 πŸ” 108 πŸ’¬ 14 πŸ“Œ 16
Preview
Large-scale online deanonymization with LLMs We show that large language models can be used to perform at-scale deanonymization. With full Internet access, our agent can re-identify Hacker News users and Anthropic Interviewer participants at hig...

Delete your socks, people.

"We show that large language models can be used to perform
at-scale deanonymization...at high precision, given pseudonymous online profiles and conversations alone, matching what would take hours for a dedicated human investigator."

04.03.2026 07:41 πŸ‘ 254 πŸ” 108 πŸ’¬ 14 πŸ“Œ 16
The two older trump boys

The two older trump boys

I fear these two take things to a whole new level.

04.03.2026 07:32 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Ayatollah Ali Khamenei’s Son Emerges as Leading Choice to Be His Successor

If Mojtaba Khamenei is chosen by Iran’s senior clerics, it may signal a victory for hard-liners, an analyst said.

Ayatollah Ali Khamenei’s Son Emerges as Leading Choice to Be His Successor If Mojtaba Khamenei is chosen by Iran’s senior clerics, it may signal a victory for hard-liners, an analyst said.

Now I realize this sounds pretty bad, but could it be a lot worse.

It could happen in the US.

04.03.2026 07:21 πŸ‘ 286 πŸ” 41 πŸ’¬ 17 πŸ“Œ 2