Spanish term for "birdwatching"?

Factual Questions
1

I am going on a birding expedition to a Spanish speaking country.

What do they call the hobby of birdwatching in Spanish? Online translators are giving me “observacion de aves”, is that it?

Is it a popular hobby among Spanish speakers themselves, or is it mostly crazy Americans and Brits who do it?

2

“observacion de aves” is correct, it refers to the act itself, “observar” means look or watch. A bird watcher is called “observador de aves” and there are enough of them to warrant the publication of guides:

http://www.agapea.com/GUiA-DEL-OBSERVADOR-DE-AVES-n85611i.htm

http://www.lsf.com.ar/libros/1/950240645.html?vienede=yaguarete

3

Yes, *observador de aves * would be best.

Sometimes I have seen “birding” translated as pajareando (derived from pajaro), bird) but this is best avoided as it is close to a slang term for masturbation.