Her wings are flightless.
"Yolanda of Cyprus"
Cale Young Rice
Something, perhaps, remains to be said concerning the causes which seem to have led to the development of these giant birds, as well as the reasons for their flightless condition and peculiar distribution, for it will be noticed that, with the exception of the African and South American ostriches the great flightless birds as a rule are, and were, confined to uninhabited or sparsely populated islands, and this is equally true of the many small, but equally flightless birds.
"Animals of the Past"
Frederic A. Lucas
A lamentable instance is that of certain flightless Rails, recently extinct or sub-fossil, on the isalnds of Mauritius, Rodriguez and Chatham.
"Darwin and Modern Science"
A.C. Seward and Others