Sturemswaalken
Sturemswaalken (Hydrobatidae) san en fögelfamile an hiar tu a sturemfögler (Procellariiformes). Diar jaft at 21 slacher faan.

Sköölen 
 Hydrobatinae
 Hydrobates - Oceanodroma
 Oceanitinae
 Fregetta - Garrodia - Nesofregetta - Oceanites - Pelagodroma

Enkelt slacher 
 Hydrobates
 Sturemswaalk (Hydrobates pelagicus)

Luke uk diar 

Fögler