below is a scan of another photocard of Semyonov's Blue Bird, perhaps from the same year as the one at the top of this thread.
1914, the date on this card, was the year that Korovin re-designed SLEEPING BEAUTY for the Maryinsky in Gorsky's staging of the choreography (much to Volinsky's displeasure, as we now know).
the 'wing' question remains.
Bronislava Nijinska states that her brother Vaslav was the one to see to it that the stiff, wire-frame wings that were part of Vsevolozhsky's original, 1890-and-after design scheme, got replaced by something more 'free' and wing-like on the dancer's arms themsleves. (the wire-frame ones seemed to come from the shoulders.)
it's a puzzle, then, to wonder if this '14 costume of Semyonov's was simply a version of what V. Nijinsky wore as Blue
Bird, or if the latter's costume was different in some ways and that Korovin simply worked from it for his own version, or if this '14 photo was taken before Korovin's new costumes were presented, which appears to have been on Feb 16th of that year.