This episode is for the birds — and one bird in particular. Flaco, an Eurasian eagle-owl, escaped from the Central Park Zoo last year and went on to become a local celebrity, delighting New Yorkers with his feathered adventures across Manhattan. Late last month, however, Flaco died after an apparent collision with a building. Obviously, Flaco's death is a sad event for many reasons, but it got us thinking about the role of birds in the wider world. Not only are they an important part of the natural ecosystem, but they can also contribute to agriculture (or quality of life in the city) by eating bugs, rats and other pests. So can you put an exact dollar amount on the value of a bird and what it does for the world? It turns out that for many decades, some economists were devoted to exactly this question. In this episode, we speak with Robert Francis, the author of the Bird History Substack, about the largely forgotten science of economic ornithology and historic attempts to figure out exactly how much a bird is worth. 

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