I've never heard of a bird besides the Albatross which is able to use "Dynamic Soaring". Am I able to draw any conclusions out of this behavior? Like, can I say "it's definitely an Albatross" or "it's definitely a sea-bird" if I watch a bird dynamically soaring?
Dynamic soaring is a flying technique used to gain energy by repeatedly crossing the boundary between air masses of significantly different velocity.
These tubes allow the albatrosses to measure the exact airspeed in flight; the nostrils are analogous to the pitot tubes in modern aircraft. The albatross needs accurate airspeed measurement in order to perform dynamic soaring.