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Dr Jacob Blokland

@blokoweka.bsky.social
97 followers 114 following 14 posts

Bird bones. OLD bird bones. Vertebrate Palaeontology (Palaeornithology) researcher @flindersuniversity.bsky.social, South Australia, investigating the evolution of rail-like #birds and other bird groups 𓅬 | Illustrator ✐ | From Waitaha, Aotearoa ⸙

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Reposted by Dr Jacob Blokland
ABC News Australia @news.abc.net.au · 19/06/2026
Suspected detection of H5 strain of bird flu in WA, which would mark first detection in Australia
abc.net.au
Breaking: Suspected H5 bird flu detection in Australia
The first suspected case of a deadly strain of bird flu that has killed millions of birds and mammals worldwide has been found in Western Australia, the federal government has confirmed.
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Reposted by Dr Jacob Blokland
Dr Dave @ecosystemunraveller.com · 07/06/2026
Look what some campers just found south of Alice Springs. Confirms a few previous sight records—new breeding locality for Night Parrot (pics from Finke Desert Race 2026’on Facebook) #WildOz
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Professor Euan Ritchie FAMS @euanritchie.bsky.social · 28/05/2026
Beautiful words and art, 100% human-made, by @jessharwoodart.bsky.social. www.theguardian.com/technology/c...
theguardian.com
AI ‘art’ is boring, soulless theft – and when I see it as an artist I see red | Jess Harwood
I draw the old way – with my hand. Doing it with AI would not make me more creative, it would drain the colour out of my existence
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Dr Jacob Blokland @blokoweka.bsky.social · 29/04/2026
Great artwork, Gen! I remember this scapulocoracoid popping out of the fish lense on the end of my shovel during the 2020 trip (at the time and place the photo within was taken). Sediment and all were then bagged, and Trevor later sorted it all for fossils under a microscope back at the lab.
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Annie Shao Art @annieshaoart.bsky.social · 10/03/2026
Newest piece, I don't see a lot of American Coot artwork! I knew I'd want to paint their crazy-looking feet for my Life List Series, as they're not often seen but are a great indicator that they're rails and not ducks! #BirdArt #SciArt #Watercolor #FineArt #AnimalArt #ArtSky
Detailed watercolor painting of an American Coot standing on a log floating on still water. The bird's lobed feet are visible.
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Alberta Claw @albertonykus.bsky.social · 03/03/2026
New species of steamer duck, the Chiloe steamer duck (Tachyeres ketru), distinguished on the basis of bill color and vocalizations: audiornis.org/journal/arti... 🪶🧪 (📷López-Lanús & Costa)
Stuffed skin of a duck from a museum collection.
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Alberta Claw @albertonykus.bsky.social · 27/01/2026
New Pleistocene kākāpō Strigops insulaborealis and swamphen Porphyrio claytongreenei: www.tandfonline.com/doi/full/10.... 🪶🧪 (📷Worthy et al.)
Fossilized foot bone of an extinct parrot.
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Reposted by Dr Jacob Blokland
Ville Sinkkonen @villesinkkonen.bsky.social · 21/11/2025
What might be my favourite fossil has been just published by Kiat et al. 2025. Years ago I saw a pic of this Anchiornis specimen in nat geo article and I audibly gasped.preserving not only the feathers but also the original patterns as well. I made this drawing on the spot. Maybe its time to do v2.0
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Royal Society of South Australia @royalsocietysa.bsky.social · 08/09/2025
Assoc. Prof. Trevor Worthy is our guest speaker for Thursday's Scientific Seminar. Presenting “Facing up to Genyornis – The hunt for the skull of Australia’s last Mihirung bird”, Trevor will cover the adventure to find its skull. Thursday 11th September RSSA Rooms, off Morgan Thomas Lane 6:00 pm
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Reposted by Dr Jacob Blokland
Mike Melton @mikemelton.bsky.social · 14/08/2025
Boat-billed Heron at Caño Negro Wildlife Refuge #CostaRica I love their large eyes that help them hunt at night. #herons #birds #nature
Close-up of a bird with a large, broad dark bill, brownish-tan plumage, and a grayish crown.
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Dr Jacob Blokland @blokoweka.bsky.social · 13/08/2025
60 million years ago, eastern #Aotearoa New Zealand was #penguin paradise! We describe 4 archaic penguin species from the Waipara Greensand, North Canterbury. This now totals 10 species from there, in addition to a diversity of Paleocene penguins from Otago and Chatham Island. #fossil #birds
academic.oup.com
Multiple exceptionally preserved fossils from the Paleocene Waipara Greensand inform the diversity of the oldest stem group Sphenisciformes and the formation of their diving adaptations
Abstract. We report new stem group sphenisciforms (ancestral penguins) from the Paleocene of the Waipara Greensand (Canterbury, New Zealand), and describe
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Alberta Claw @albertonykus.bsky.social · 12/08/2025
New Paleocene proto-penguins Archaeodyptes waitahaorum, Daniadyptes primaevus, Waimanutaha kenlovei, and Waiparadyptes gracilitarsus: academic.oup.com/zoolinnean/a... 🪶🧪 (📷Mayr et al.)
Multiple fossilized skeletons of extinct birds closely related to penguins.
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Jamie Wood @larusnz.bsky.social · 04/08/2025
New Zealand birds never fail to amaze. The extinct Hodgen's rail, thought to be a diminutive relative of the Australian waterhen, turns out instead to be a giant crake! link.springer.com/article/10.1... 📷: Paul Martinson, Te Papa CC BY-NC-ND 4.0
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German Ornithological Society @dornitholges.bsky.social · 04/08/2025
Now online in Journal of #Ornithology Another case of island gigantism: the extinct Hodgens’ Waterhen (Tribonyx hodgenorum) is a member of Porzana (Aves: Rallidae) link.springer.com/article/10.1...
link.springer.com
Another case of island gigantism: the extinct Hodgens’ Waterhen (Tribonyx hodgenorum) is a member of Porzana (Aves: Rallidae) - Journal of Ornithology
Tribonyx hodgenorum (Scarlett, Rec Canterb Mus 6:265–266, 1955) was a flightless rail (Rallidae) endemic to Aotearoa New Zealand that became extinct in the eighteenth century. The affinities of this r...
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Alberta Claw @albertonykus.bsky.social · 01/08/2025
Genetic analysis reveals that the recently extinct Hodgens' waterhen ("Tribonyx" hodgenorum; A, D, G, J in figure) was a giant, flightless crake in the genus Porzana: link.springer.com/article/10.1... 🪶🧪 (📷Sangster et al.)
Comparison of the wing and leg bones of several species of rail, including the recently extinct Hodgens' waterhen (A, D, G, J), the closely related Australian crake (B, E, H, K), and the black-tailed nativehen (C, F, I, L).
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Dr Jacob Blokland @blokoweka.bsky.social · 01/08/2025
New #research out today led by George Sangster, with Trevor Worthy, Pascale Lubbe, Paul Scofield & myself. Recently #extinct flightless #rail Hodgens' waterhen from #Aotearoa New Zealand is a 'giant' crake of the genus Porzana, rather than a nativehen of Tribonyx. (📷 credits given in ALT text)
link.springer.com
Another case of island gigantism: the extinct Hodgens’ Waterhen (Tribonyx hodgenorum) is a member of Porzana (Aves: Rallidae) - Journal of Ornithology
Tribonyx hodgenorum (Scarlett, Rec Canterb Mus 6:265–266, 1955) was a flightless rail (Rallidae) endemic to Aotearoa New Zealand that became extinct in the eighteenth century. The affinities of this r...
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Reposted by Dr Jacob Blokland
Jarod K. Anderson @jarodkanderson.bsky.social · 30/07/2025
Birds are dinosaurs who shrugged off a couple apocalypses. Some eat bone marrow. Some drink nectar. They outswim fish in the sea. They smile politely at gravity’s demands. ‬ ‪I am grateful to see them. I am grateful to feed them. I am grateful to know them.‬
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Isaac Kerr @isaacarkerr.bsky.social · 31/07/2025
NEW #RESEARCH WOOHOO Here's our description of Dorcopsoides cowpatensis sp. nov., a little #fossil macropodine #kangaroo from the late Miocene Ongeva locality in central #Australia. doi.org/10.1080/0311...
doi.org
A new fossil kangaroo species of the genus Dorcopsoides (Marsupialia, Macropodinae) from the late Miocene Ongeva Local Fauna, central Australia
The kangaroo tribe Dorcopsini is represented today by six species of New Guinean forest-wallaby. However, the group has a patchy fossil record beginning on the Australian mainland in the upper Mioc...
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Stephan Spiekman @stephanspiekman.bsky.social · 23/07/2025
I am proud and grateful to present a dream project today in @nature.com www.nature.com/articles/s41... Meet #Mirasaura grauvogeli, a #wonderreptilewith skin appendages that rival feathers and hairs, challenging our view of reptile #evolution🪶🦎
Artwork by Gabriel Ugueto
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Dr Jacob Blokland @blokoweka.bsky.social · 20/07/2025
Came across this the other day... first time I've seen my work being used in the production of an AI image. The skull they've used is the same one I had drawn. Had to laugh at "All rights and credits reserved to the respective". Sad that this type of thing is commonplace.
Screenshot 1 of 2 of a Facebook post about Genyornis newtoni, which has an AI generated image produced from work illustrated by Jacob Blokland (not attributed). Screenshot 2 of 2 of a Facebook post about Genyornis newtoni, which has an AI generated image produced from work illustrated by Jacob Blokland (not attributed). Skull image they have used here is unaltered from what I drew.
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Reposted by Dr Jacob Blokland
phoebyornis.bsky.social @phoebyornis.bsky.social · 06/07/2025
It was fun diving into the world of ancient sound-scapes with GM and hearing analyses. I think the dromornithids will continue to suprise me at every turn
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Reposted by Dr Jacob Blokland
Alberta Claw @albertonykus.bsky.social · 04/07/2025
Phylogenetic position of the recently extinct Nesotrochis "cave rails" of the Caribbean: www.avespress.com/uploads/down... New analysis suggests they were the closest known relatives of the (also recently extinct) New Zealand adzebills! 🪶🧪 (📷 @stervander.com et al.)
Diagram showing the evolutionary relationships among cranes, rails, and other closely related birds, scaled against geologic time.
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Dr Jacob Blokland @blokoweka.bsky.social · 06/07/2025
Great new research out by @phoebyornis.bsky.social McIn-ear-ney, Warren and Trevor, investigating the hearing capabilities of Australia's extinct Thunder Birds (Dromornithidae). Love the idea of these beasties booming across the landscape.
onlinelibrary.wiley.com
The hearing capabilities of the Dromornithidae (Aves), with inferences on acoustic communication and ecology
The preservation of bony structures which enclose the hearing organs (ECD) provide a basis for interpreting the hearing capabilities of the extinct, flightless Dromornithidae (Aves). Although the len....
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Dr Alice Clement @draliceclement.bsky.social · 05/07/2025
Very proud of this one, my first foray into #biomechanics using #FEA! “Comparison of diverse mandibular mechanics during biting in Devonian lungfishes”, published today in @cp-iscience.bsky.social, based on Joshua Bland’s honours work: www.sciencedirect.com/science/arti...
sciencedirect.com
Comparison of diverse mandibular mechanics during biting in Devonian lungfishes
Fossil lungfish from the Late Devonian Gogo Formation, Australia, feature some of the most remarkable and specialized mandible morphologies in their 4…
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Reposted by Dr Jacob Blokland
Martin Stervander 🏳️‍🌈🇸🇪🏴󠁧󠁢󠁳󠁣󠁴󠁿🏛️🦉🦤🪶 @stervander.com · 03/07/2025
Welcome a new family of #birds, the Caribbean cave rails, Nesotrochidae! They were—surprisingly—the sisters of NZ adzebills, all sadly extinct. New #OpenAccess paper out in Avian #Systematics w Gerald Mayr, Chen Guangji & Feng Shaohong: www.avespress.com/uploads/down... 🧵 #ornithology #taxonomy 🧪🪶
An artistic rendition of the extinct Antillean Cave Rail, Nesotrochis debooyi Wetmore, 1918. ©Piotr Gryz, with permission.
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Trevor A. Branch @trevorabranch.bsky.social · 02/07/2025
In an unconscionable decision, the Smithsonian Institute has decided to no longer support the Biodiversity Heritage Library from 1 Jan 2026. Please someone step up and take it over.
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Mario Lanzas @mariolanzas.bsky.social · 16/06/2025
DROMORNIS #dromornis #paleoart #kevin
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Bec Crew @beccrew.bsky.social · 05/06/2025
Bot-made art undermines research and public trust in science, say illustrators frustrated by inaccurate and outlandish depictions. @kamalnahas.bsky.social @ella-maru.bsky.social‬ ‪@blokoweka.bsky.social‬ www.nature.com/articles/d41...
nature.com
Illustrators call out journals and news sites for using AI art
Bot-made art undermines research and public trust in science, say illustrators frustrated by inaccurate and outlandish depictions.
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Alberta Claw @albertonykus.bsky.social · 25/06/2025
New Miocene artamid (butcherbird/currawong cousin) Miostrepera canora: link.springer.com/article/10.1... From New Zealand, where these birds aren't found today! 🪶🧪 (📷Worthy et al.)
Fossilized limb bones from an extinct crow-like songbird.
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Andrew Iwaniuk @evoneuro.bsky.social · 10/06/2025
Less than two months before our book is finally released. If you are interested in bird behaviour or comparative neurobiology and want to learn more, this is the book for you! mitpress.mit.edu/978026255273... And the ebook will be open access! #neuroskyence #ornithology #birds 🧪🧠
A book cover entitled: Bird Brains and Behavior: A Synthesis by authors Georg F. Striedter and Andrew N. Iwaniuk. It features photos of a turkey vulture, song sparrow, and whimbrel, as well as a drawing of an albatross brain.
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Joschua Knüppe @joschuaknuppe.bsky.social · 09/06/2025
There is no tomorrow for Moa kind. In this result of yesterdays #paleostream we explore the Holocene of New Zealand, a world we largely lost not even 1000 years ago.
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Ele Willoughby @minouette.bsky.social · 06/06/2025
"AI images don’t succinctly or accurately communicate scientific concepts & could undermine public trust in science... inaccuracies wouldn’t fly if they were created by a person, “but for some reason, having this sheen of fake polish that comes with AI kind of erases all of those standards” 🧪#sciart
nature.com
Illustrators call out journals and news sites for using AI art
Bot-made art undermines research and public trust in science, say illustrators frustrated by inaccurate and outlandish depictions.
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Reposted by Dr Jacob Blokland
Jocelyn Anderson Photography @jocelynanderson.bsky.social · 21/05/2025
A Sandhill Crane colt – a young Sandhill Crane – shorter than a Dandelion puff.
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Steve White @sharkbitesteve.bsky.social · 26/05/2025
Thylacines. A3 private commission. A pair of Tasmanian wolves chase a pademelon (a sort of Tasmanian wallaby) My first time doing a thylacine. Definitely my first time going a pademelon.
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Jamie Wood @larusnz.bsky.social · 12/03/2025
Once widespread, now critically endangered: New study shows kākāpō are the 4th most common bird in NZ's late-Quaternary deposits (>1351 individuals from 274 sites), and occupied all forests and adjacent habitats, on the NZ mainland prior to human settlement authors.elsevier.com/c/1klUo-4PSD...
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Alberta Claw @albertonykus.bsky.social · 27/01/2025
Yearly roundup of new research in maniraptoran paleontology, anatomy, and evolution! What were everyone's favorite maniraptoran discoveries of 2024? albertonykus.blogspot.com/2025/01/revi... 🪶🧪 (📷Chiappe et al., Stiller et al., @blokoweka.bsky.social in McInerney et al., Goodman & Rasolonjatovo)
Fossilized skull of a toothless, bird-like dinosaur (above) with a multicolored interpretive drawing (middle) and digital model (below) of it.Diagram showing the evolutionary relationships among major bird groups.Illustration of the skull of Genyornis, a giant extinct bird with a large beak.Wing bone of a recently extinct bird compared to that of a close extant relative. Both exhibit a long, pointed spur projecting from the leading edge, but this structure is much larger in the extinct form.
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David Allen Lambert @dlgenealogist.bsky.social · 21/12/2024
Destroy this myth. Please share if you have visited and researched in a library this past year! RT And give a shout out to your favorite library you have ever visited.
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Jamie Wood @larusnz.bsky.social · 24/01/2025
New modelling suggests that extinctions of moa could only have been avoided with unrealistically expansive no-take zones (covering at least half of New Zealand's land area) and implausibly low annual harvest rates (just 1 % of bird populations per annum).
sciencedirect.com
Was extinction of New Zealand's avian megafauna an unavoidable consequence of human arrival?
Human overexploitation contributed strongly to the loss of hundreds of bird species across Oceania, including nine giant, flightless birds called moa.…
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Aubrey Keirnan @aub-birdy.bsky.social · 22/01/2025
Check out our latest paper validating telencephalon and cerebellum endocast measurements in birds 🐦🦅🦆🦃🪿🐦‍⬛ royalsocietypublishing.org/doi/10.1098/... @evolsara.bsky.social @evoneuro.bsky.social
royalsocietypublishing.org
Avian telencephalon and cerebellum volumes can be accurately estimated from digital brain endocasts | Biology Letters
For studies of the evolution of vertebrate brain anatomy and potentially associated behaviours, reconstructions of digital brain endocasts from computed tomography scans have revolutionized our capaci...
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Christoph Fischer Photography @beautysurroundsyou.com · 23/01/2025
It took me more than 4 years to capture a scene I could only dream of. A magnificent Condor soars above the peaks of Argentina's Mount Fitz Roy, as they are spot lit in beautiful morning light. 🪶 #bluesky #photography #landscape #birds #nature #landscapephotography #naturephotography #travel #scape
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