Assertion: pigeon | /r/HasAspect | strong wing muscles
Facets:
Source sentences:
text: The wings are large, and have eleven primary feathers; pigeons have strong wing muscles (wing muscles comprise 31–44% of their body weight) and are among the strongest fliers of all birds.
text: The wings are large, having 11 primary feathers, and have low wing-loadings; pigeons and doves have strong wing muscles and are among the strongest fliers of all birds; they are also highly manoeuvrable in flight.