Humans are so cute. They think they can outsmart birds. They place nasty metal spikes on rooftops and ledges to prevent birds from nesting there.
It’s a classic human trick known in urban design as “evil architecture”: designing a place in a way that’s meant to deter others. Think of the city benches you see segmented by bars to stop homeless people sleeping there.
But birds are genius rebels. Not only are they undeterred by evil architecture, they actually use it to their advantage, according to a new Dutch study published in the journal Deinsea.
Crows and magpies, it turns out, are learning to rip strips of anti-bird spikes off of buildings and use them to build their nests. It’s an incredible addition to the growing body of evidence about the intelligence of birds, so wrongly maligned as stupid that “bird-brained” is still commonly used as an insult...
Magpies also use anti-bird spikes for their nests. In 2021, a hospital patient in Antwerp, Belgium, looked out the window and noticed a huge magpie’s nest in a tree in the courtyard. Biologist Auke-Florian Hiemstra of Leiden-based Naturalis Biodiversity Center, one of the study’s authors, went to collect the nest and found that it was made out of 50 meters of anti-bird strips, containing no fewer than 1,500 metal spikes.
Hiemstra describes the magpie nest as “an impregnable fortress.”
Pictured: A huge magpie nest made out of 1,500 metal spikes.
Magpies are known to build roofs over their nests to prevent other birds from stealing their eggs and young. Usually, they scrounge around in nature for thorny plants or spiky branches to form the roof. But city birds don’t need to search for the perfect branch — they can just use the anti-bird spikes that humans have so kindly put at their disposal.
“The magpies appear to be using the pins exactly the same way we do: to keep other birds away from their nest,” Hiemstra said.
Another urban magpie nest, this one from Scotland, really shows off the roof-building tactic:
Pictured: A nest from Scotland shows how urban magpies are using anti-bird spikes to construct a roof meant to protect their young and eggs from predators.
Birds had already been spotted using upward-pointing anti-bird spikes as foundations for nests. In 2016, the so-called Parkdale Pigeon became Twitter-famous for refusing to give up when humans removed her first nest and installed spikes on her chosen nesting site, the top of an LCD monitor on a subway platform in Melbourne. The avian architect rebelled and built an even better home there, using the spikes as a foundation to hold her nest more securely in place.
...Hiemstra’s study is the first to show that birds, adapting to city life, are learning to seek out and use our anti-bird spikes as their nesting material. Pretty badass, right?
The genius of birds — and other animals we underestimate
It’s a well-established fact that many bird species are highly intelligent. Members of the corvid family, which includes crows and magpies, are especially renowned for their smarts. Crows can solve complex puzzles, while magpies can pass the “mirror test” — the classic test that scientists use to determine if a species is self-aware.
Studies show that some birds have evolved cognitive skills similar to our own: They have amazing memories, remembering for months the thousands of different hiding places where they’ve stashed seeds, and they use their own experiences to predict the behavior of other birds, suggesting they’ve got some theory of mind.
And, as author Jennifer Ackerman details in The Genius of Birds, birds are brilliant at using tools. Black palm cockatoos use twigs as drumsticks, tapping out a beat on a tree trunk to get a female’s attention. Jays use sticks as spears to attack other birds...
Birds have also been known to use human tools to their advantage. When carrion crows want to crack a walnut, for example, they position the nut on a busy road, wait for a passing car to crush the shell, then swoop down to collect the nut and eat it. This behavior has been recorded several times in Japanese crows.
But what’s unique about Hiemstra’s study is that it shows birds using human tools, specifically designed to thwart birds’ plans, in order to thwart our plans instead. We humans try to keep birds away with spikes, and the birds — ingenious rebels that they are — retort: Thanks, humans!
-via Vox, July 26, 2023
1K notes
·
View notes
Hello friends who nest!
Whether you're kin, a regressor, or miscecanis, you might be affected by what I call the nesting season, and want to nest all the time! 🪹
So I decided to make a little post about stuff I like in my nest to maybe give some of you ideas or just some comfiness reading it, because nesting is taking up like 80% of my brain right now- 💚
My essentials are:
🪹 Blankets (the fluffier the better)
🪹 Plenty of pillows
🪹 A tons of plushies
🪹 Orange essential oil on the stuffs
🪹 A cedar or orange candle/incense
🪹 A cosy drink (like coffee with some cinnamon)
🪹 A cosy show or podcast
🪹 Some snacks! (nuts for my crow brain, sweet things for the omega cravings, and sometimes some other stuff personally)
I also like to kidnap my partner in it, but that's not always possible 🥺😞
Please feel free to add on with your nesting essentials! ☕️
Happy nesting friends! 💚🪹
191 notes
·
View notes
Day 21 of Marchirp: Nest
I made a card game called Nest and so I came up with Marchirp to motivate me to finish illustrating all 14 birds lol.
[Image ID: various birds in front of, inside, and above a nest under the word NEST drawn to look like the letters are made of twigs. End ID]
I'll have the printable version up on my Etsy soon but I wanna do a kickstarter for an official version eventually.
I couldn't come up with a good pun for April, but you're gonna see my anthropomorphized lizards for the next game I'm illustrating: Lizard Duel🦎
102 notes
·
View notes
A slightly dry dinner in northern Antarctica. Although meals are secondary to snacking throughout the day, they are still social events for the community. In part because of the beak notch, most cultures tend to eat dryer food earlier in the day and then less solid food later on. Friends will tend to gather when they eat, and out of all meals, dinner becomes a significant social occasion resulting from the large number of Directors heading back to sleeping areas/recreation and such after eating and cleaning off. Much of the food is served in what it was made in, though not all of it. Water is regularly dumped out and refilled. This being one of the first groups to arrive since the area was cleaned, there isn't much in the way of spillage, but there will be.
The beak notch:
It was smaller in the past, and its slow expansion has been attributed to the increased necessity of tool use. It's not large enough to prevent adequate food/water intake, but it does mean that some will inevitably spill out. When this actually became a problem for sanitation as larger communities developed, it became common for eating areas to have floor mats dedicated to collecting what drops down that and are then washed afterward, having them on platforms so the food can be dropped down, or a mix of both.
Recycling:
In the past, they've used food waste as biomass for insect farms/compost. It is also now used to help with biotech cultivation.
As a community activity:
Meals contribute quite a bit to daily life since communities tend to eat in the same place as a social activity. Wake up, eat a fairly dry snack with water, and start the day, with meals typically getting less dry and drinks more flavorful as the day goes on. At least one large meal is often had in the evening where most of the community gathers at once and groups interact, share gossip, and otherwise just chill for a bit. After that, most will head to communal bath houses where they'll clean up before dispersing again, either to sleep for the night or begin community nighttime functions.
Bragging to the other collectives about how many dead things they harvested from the biomass pile but then the engineering collective challenges the plant ag collective to a platform duel for fun (king of the hill but the platform is suspended like 50 feet in the air) so like half the group breaks off and the sanitation collective gets angry and starts scolding them because the fuckers just made their job 10 times more difficult by making a mess everywhere because they tried to take their food out of the eating area to watch without making prior arrangements.
95 notes
·
View notes
peachtober day 12: NEST
[image description: a black and white watercolor painting with pen outlines, of two giant crows perching on a treehouse. the treehouse is comprised of two small houses connected by several staircases and porches, with a swing and a long ladder hanging from the lowermost platform. the first crow perches on the roof of one of the houses, and the second has its wings outstretched, in the process of landing. /end i.d.]
162 notes
·
View notes
Everyone talking about dottore and the segments turning into cats, but never into crows/ravens😞 imagine them cawing at you just to annoy you while zandy just sits on your shoulder completely unbothered
OMG SO CUTE... at first, it would be a bit unnerving to be surrounded by so many corvids looming over you, but you'd get used to it rather quickly. (After all, you've already dealt with being surrounded by a lot of Dottores.) Unfortunately, cawing right into your ear is a lot more aggravating than constant meowing. Your food also gets nabbed quite a few times from one of them swooping in out of nowhere... However, although they're resistant at first, they are still very much receptive to your, and only yours, touch. Small head pats and him nuzzling his beak into your finger. Pecks you affectionately. Threatens anyone who gets too close with less than affectionate pecks. (Pantalone, who found out about the situation, only laughs at the Harbinger's pathetic display of aggression.)
(On twt once i saw a video of a lady giving a crow a tummy rub with a pen... it reminds me of this. He starts squawking the moment you stop even though you're busy trying to find the antidote. 🙄 the audacity) You would also feel so proud the moment one of them actually lands on your stretched-out arm all majestically. Zandy though, is very small compared to the rest of the flock... he remains perched on your shoulder or on the top of your head in all instances. Poor little guy is overwhelmed by all the other segments towering over him. 😔 You end up missing how soft their feathers are but, you just go back to cuddling the black fluff Dottore always wears on his shoulder.
90 notes
·
View notes