Here's hoping to the next 1,000 more on this marvelous continent! Also should be mentioned are some non birds: Elephant seal mother and calf! Geoffrey's cat (encountered twice!)

Had a fantastic day in Argentina this #OctoberBigDay with @Marcelo Gavensky Several highlights of the day: Snowy sheathbills (family lifer! No. 999), Burrowing parakeets by the sea, And after nearly 5 months of travel, today I've reached 1000 bird species in South America! 🎉

Tragic. Preventable. Final. The Slender-billed Curlew is officially extinct, declared today by the IUCN. On our watch. We are technically brilliant and carelessly blind. Sit with the silence. Then fight for what remains. #Extinction #BiodiversityCrisis #Curlews @DavidGray

Since early morning, my family and I have been living in a state of total psychological collapse. Today we learned that our homes, our land, and our entire neighborhood, every house belonging to our family and our neighbors, have been completely erased. Bulldozed. Flattened into

Sun Bittern taken in Costa Rica

It pains me to say this but rest in peace Dr. Mark Norell. An absolute giant in paleontology, leading incredible studies and work. Thoughts for his family and those close to him. A staggering loss no doubt. You’ll be missed doctor

Feeling the incalculable loss of Mark Norell (1957-2025): wonderful scientist and cherished friend. His influence will continue through his many mentees and the science he did and inspired.

Time to reopen the Pandora's box

https://t.co/2GyOaeRHMh

The last passenger pigeon died 111 years ago today and not a day goes by that I don't think about how their flocks numbered in the *billions*, that their roosts covered 100+ square miles, that they collapsed trees with their nests. America is incomplete without them

Now what we should actually do with feral cat colonies is treat them like we would any other invasive species But I don’t think people are ready for that conversation

Just got word that the dean of Mongolian vertebrate paleontology, Rinchen Barsbold, passed away at age 90. A pivotal figure in the history of paleontology in his nation, and of the study of theropods.

THE NEW MATERIAL OF SPICOMELLUS IS OUT!! LOOK AT IT Extreme armour in the world’s oldest ankylosaur https://t.co/ZZt1sTWocw

We really need a documentary like Prehistoric Planet or Walking with... that features the totally alien fauna of Miocene South America.

The #IsleofWight is a world famous dinosaur hotspot... and it's desperately in need of a new museum and Science Park. Help us by signing the petition (either via the QR or at https://t.co/qyAve0GRxm). Watch out for news in the coming weeks :) #dinosaurs

https://t.co/8dgqN9f6lW

Oh woah -- this fossil looks extraordinary. Shri rapax, a new, Mongolian, #Velociraptor-like dromaeosaurid with robust hands and indications of a powerful bite. https://t.co/bHzkXaImH7 #dinosaurs #Cretaceous

After diving with hammerheads this past week (including one of the most thrilling moments of my life!), I got to think about our perception of them. For how long are humans aware of their existence? And I guess it is a little longer than I assumed

Tyrannosaur glazing being so prevalent even in "enthusiast" circles is really getting on my nerves lately because how do you make a meme this backwards? Does this person know why tyrannosaurs didn't evolve into large, apex predators until the latter stages of the Cretaceous?

https://t.co/gOGzaCJsvu