It's nice to see entries with less melodic aspects and more chaotic and experimental elements, especially pigeon entries because they fit so well with this kind of bosses!
The synth of the first section represents the rage of pigeons very well (or at least, that's what I interpreted). The drum arrangement is also unpredictable (which is what you'd expect from 1000 pigeons) yet satisfying to hear. The swiping sound as a flying sound and hi-hats as a marching sound are clever choices of instruments as well.
The melody sounds both goofy and disturbing at the same time. That is considered a good thing for a pigeon entry.
Nice job!