Dr Christina N. Zdenek's Avatar

Dr Christina N. Zdenek

@cnzdenek

Ecologist and Herpetologist. Urban Birds Program Coordinator (BirdLife AUS), Ass. Researcher, People For Wildlife. Co-owner, AUS Reptile Academy. Fulbright alumna. Inspiring Australia Ambassador (Qld). #PalmCockatooProject. Ex UofCaliforniaIrvine / ANU

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15.11.2024
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Latest posts by Dr Christina N. Zdenek @cnzdenek

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Owl be damned: regulator stops short of rat poison ban Conservationists are pushing for a regulator to outlaw a common class of rodenticides having pervasive effects on owls...

Why are our owls dying?? It’s all about which rat bait that you, your neighbours, your council, and pest controllers are using.
Read this excellent article by @andrewstafford.bsky.social , with expert comment from myself among others.

www.canberratimes.com.au/story/919290...

10.03.2026 22:41 πŸ‘ 11 πŸ” 9 πŸ’¬ 0 πŸ“Œ 0

If you’re wondering why owls and Tawny Frogmouths are dying, have a read. Your dog or cat might be next if we don’t speak up and hold the regulator to account. I wrote this article w/ Dr Holly Parsons.

04.03.2026 12:19 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I wrote this article w/ Dr Holly Parsons. If you’re wondering why owls and Tawny Frogmouths are dying, have a read. Your dog or cat might be next if we don’t speak up and hold the regulator to account.

04.03.2026 11:26 πŸ‘ 6 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Calls for change as controversial product found in iconic Aussie spot: 'Unacceptable risk' It's feared they could be having a toxic effect around the surrounding area.

Just out: new information reveals that Australian Parliament House uses long-lasting, harmful rat poisons (SGARs) that are killing owls, eagles, quolls, and Tawny Frogmouths 😳😑. I give expert comment for this @yahoonews.com article about it: au.news.yahoo.com/calls-for-ch... @birdlifeoz.bsky.social

04.03.2026 11:24 πŸ‘ 7 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Oh, don’t worry. The pond is 2m to the left of this shot.

04.03.2026 11:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

πŸ˜‚πŸ™Œ

26.02.2026 09:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Before-after photos of my habitat garden (rainforest plant community section). Supporting #UrbanBirds with @birdlifeoz.bsky.social, #UrbanFrogs, and #UrbanLizards! πŸ₯Ή AND our mental well-being, especially on wfh days πŸ’ƒπŸ€“! If u were a frog, would u live here??

25.02.2026 11:07 πŸ‘ 13 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
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For those of you who missed any #SnakeWeek talks that we (IUCN Snake Specialist Group) helped organise, have no fear...the @snakeweek.bsky.social YouTube channel is here! Watch & learn about snakes and snake researchers at your own pace. Some evening entertainment for you! www.youtube.com/@SnakeWeek

05.10.2025 11:35 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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First World Congress on Snakes 2026 | Inaugural International Snake Conference | Kandy, Sri Lanka Join the first-ever World Congress on Snakes (WSC 2026) - a historic inaugural event featuring world-renowned keynote speakers, symposia, workshops, and groundbreaking research presentations. October ...

Exciting times for snake knowledge sharing this year! The World Congress of Snakes is happening for the first time ever! It'll be held 1–4Oct 2026 in Sri Lanka. Early-bird registration ends 31March. We have several members of our Snake Specialist Group planning to attend.
www.worldsnakes26.com

25.02.2026 10:18 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Another productive and enjoyable meeting of our regional (Australia/Melanesia/Oceania) group under the IUCN SSC Snake Specialist Group! A few things we got up to this time: We made plans for the World Congress of Snakes (see www.worldsnakes26.com), ...(1/n)

25.02.2026 10:28 πŸ‘ 7 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0

Perfect. They’ll keep the invasive rodents down 😎

19.01.2026 12:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

In a lot of ways it’s harder to convert than to start from scratch. But u got this πŸ‘Š

14.01.2026 11:52 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Thank you. 3 immediate neighbours have made a 3D garden bed that’s not lawn, 1 of which is about 30% locally-native. And a 4th neighbour up the rd has 1/2 the front Australian natives. So getting there! Maybe start small (eg a native bed) and expand as they get used to the idea and hear why u did it

14.01.2026 11:33 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Before-After photos of my #HabitatGarden near #Brisbane, 15 months apart. Who thinks we should abandon lawns and make habitat gardens instead?

14.01.2026 10:41 πŸ‘ 48 πŸ” 11 πŸ’¬ 8 πŸ“Œ 1

Epic individual 😎

12.01.2026 06:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

great question. The trouble is, this differs depending on where you r in Oz, as different locally native plants exist in different places. But things w/ large root mass. I know grass trees have huge root balls and grow well on slopes. @birdlifeoz.bsky.social has a free habitat gardening course too!

12.01.2026 06:40 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Thanks! The more people that make habitat gardens, the less out of place they will seem, and the better off all our wildlife in our well-being will be :-). Yes, you are correct that it is a C. littoralis, and a X. johnsonii. And yes, skinny pine-like leaves is good to prevent evapotranspiration πŸ™Œ

12.01.2026 06:09 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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#HabitatGarden update: it’s thriving!

12.01.2026 05:30 πŸ‘ 16 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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#HabitatGarden plant highlight: Wahlenbergia tumidifructa. An unassuming, perennial herb that bunches in thickets reminiscent of grass, up to 600mm. It’s native to much of Australia and serves as great erosion control at the bottom edge of my small suburban block south of #Brisbane. #WildOz

31.12.2025 00:53 πŸ‘ 9 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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4 generations of Eastern Pilbara Spiny-tailed Skinks (Egernia epsisolus). The baby was just born last week 😍.

21.12.2025 08:28 πŸ‘ 28 πŸ” 8 πŸ’¬ 2 πŸ“Œ 0
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2026 BirdLife Australia Calendar - BirdLife Australia Order your 2026 BirdLife Australia Calendar featuring some of our favourite photos from the BirdLife Australia Photography Awards! Support wildlife conservation with this stunning calendar!

Need a Christmas present idea? The @birdlifeoz.bsky.social bird calendar was just released, and it has stunning photos of some stellar Aussie birds 🀩! This gift also helps support BirdLife’s mission to save birds. birdlife.org.au/product/2026...

01.12.2025 23:00 πŸ‘ 8 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Thx! And even a hardwood log hollow addition 😜

24.11.2025 00:38 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Nice unprompted feedback from a student of mine at Uni Southern Qld @soaes-unisq.bsky.social πŸ€“. I’m currently teaching 3rd year undergrads there in the course Biodiversity and Conservation Science.

24.11.2025 00:37 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Omg have so much fun! So sad I can’t go this year 😭 (too many conferences). Pls post here for me and others πŸ™

24.11.2025 00:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Thx. Changed

16.11.2025 23:26 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Good morning, all, from my #HabitatGarden near #Brisbane

16.11.2025 22:01 πŸ‘ 9 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Limited research on the topic suggests an ⬆️ risk of death for relocated snakes. Snakes required for venom r captive & are the same individuals over time. It’s funnel web spiders that the public r asked to collect for venom extraction, and this is b/c spiders live much shorter lives than snakes.

16.11.2025 21:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Snakes, sheilas and a backblocks shed: the school teaching how to wrangle Australia’s most venomous reptiles β€˜If you wouldn’t mind,’ the instructor says, handing out legal documents to all those who enter, β€˜signing your life away’

Out today! @theguardian.com writes an important article about the snake catching industry in Aus. A fascinating read. We took the journalist on a snake-education journey at our venomous-snake handling course to guide the article. Expert comment by yours truly πŸ€“.

www.theguardian.com/australia-ne...

14.11.2025 22:59 πŸ‘ 10 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
Snake handling in a paddock

Snake handling in a paddock

Snake handling in a paddock

Snake handling in a paddock

Snake handling in a paddock

Snake handling in a paddock

Snake handling in a paddock

Snake handling in a paddock

Another cracking snake-handling course on the weekend! This time for 15 students: a large-property owner, zookeeper, future snake-catchers, 3 school grounds persons, and even a journalist from @theguardian.com ! Our next course is 29Nov (near Gatton, Qld). DM if interested. #OzReptileAcademy

11.11.2025 03:01 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

POwl detectives! πŸ•΅οΈ πŸ€“πŸ™ŒπŸ’š

31.10.2025 02:31 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0