Here’s the program note, a newly added excerpt and a few pages of the score (opening and climactic point ten minutes in), in case you are curious:
Ornithomancy is the practice of divination by observing the activity and flight patterns of birds. Though I’m not convinced of their ability to predict the future, I have a long-held fascination with birds of all kinds. Their energy, flight and songs are beautiful and strange, and thus a fertile subject for a flute concerto.
In keeping with the idea of bird-like flocking activities, rather than one extended cadenza, this concerto features various short solos and cadenza-like passages that include soloistic playing from various members of the orchestra.
Ornithomancy is a single-movement piece, about 15 minutes long, in three roughly equal sections. The first section is somewhat slower and more mysterious than the rest of the piece – in mood, it is somewhat sneaky, and the music is quite chromatic. The next section of the piece is fast and nervous (one might even say flighty), rhythmically punchy and precise. In the final section, there is a sense of sense of expansion, flight, and reverie.