Several inaccuracies in the article [they do not come ONLY from Argentina, they are not illegal in NJ -they require a special permit and all you have to do is apply for it- and they are not only unique in building 'stick nests' but also in the fact that they are sui generis AND inhabit the nests all year round] but, all in all, a nice article about them. And it is true that they love cemeteries because the flocks that fly over my house back home go back and forth between a park and a cemetery [it's the tall trees that they like so much!].
https://www.msn.com/en-nz/news/world/pa ... ar-BBKKd7g