Super pleasant experience, especially for your first game! Congrats on pulling it off, making games is hard. The controls are responsive and the enemy patterns and behaviors are fun to learn and dodge. I like the attention to detail with the bird windup, letting you know when they'll be swooshing by and giving you time to react. The only thing that stands out is I feel as though the upward speed you get when flapping your wings is sort of low, but it really depends on preference to difficulty, so not really a flaw at all. Maybe more movement ability options would be nice. Graphics are very nice and sfx are good.
Great work! And keep going :)