I actually enjoyed the article and the variety of drum beats, and the spectrograms, even though we have completely different woodpeckers here in Finland.

This is a somewhat ridiculous comment. The article says many things about what one should pay attention to in order to identify what species of woodpecker you're hearing, and I'm sure you could easily get a list of species that live near you with descriptions of their drumming.

Sample quote:

> It’s especially important to pay attention to speed and duration of the drumming

Imagine if someone described the different leaf characteristics (shapes, arrangement, edges, etc) and used local-to-them trees as illustrations. Is that useless to me? Or can I perhaps find an analog from the trees native to my city?