"Now, the Kestrel is among the smallest of falcons," Sergei says "And one would think this a limitation. Do not. When the fire is in her, Helga is far more fierce than some eagles. She is smaller and the great winds can push her around more, so, she, and other kestrels, respond by embracing the wind and using it all the more adeptly. If I may paraphrase, it 's not the size of the bird in the storm, but the size of the storm in the bird that matters"