Birds dismantling hostile architecture posts
The Smithsonian Magazine reported on a research paper about this: https://www.smithsonianmag.com/smart-news/crows-and-magpies-snatch-anti-bird-spikes-to-build-their-nests-180982546
The research (PDF)
The article links to this tweet by an author of the study, Auke-Florian Hiemstra...
And here is a magpie nest in a tree, photographed by the same guy...
There are more cute photos and adorable comments in this Audubon article about the paper: https://www.audubon.org/magazine/apparently-magpies-and-crows-are-using-anti-bird-spikes-make-their-nests
...Cockatoos have fun too!












