Assertion: storm petrel | /r/HasAspect | higher upstroke
Facets:
Source sentences:
text: This is a small, uniformly sooty-brown storm petrel with a forked tail, closely resembling the black storm petrel, however it is smaller and has a more fluttering style of flight, with the upstroke only becoming horizontal to the body before beginning the downstroke (other storm-petrels in its range have a higher upstroke).
text: This is a small, uniformly sooty-brown storm petrel with a forked tail, closely resembling the Black Storm-petrel, however it is smaller and has a more fluttering style of flight, with the upstroke only becoming horizontal to the body before beginning the downstroke (other storm-petrels in its range have a higher upstroke).