Defining that increasingly rara avis, the anthropological linguist.

The anthropological linguist possess proficiency in linguistic analysis of the sort falling under the umbrella of Basic Linguistic Theory. To put it crudely, s/he can solve problems in phonology, morphology, and syntax.

The anthropological linguist conducts fieldwork in order to collect data in the service of the production of a linguistic description. This has always meant that s/he has an at least decent ear. Nowadays it also implies has some ability to utilize digital audio recording technology and to construct RDBs.