The "story" is cool and very creative! And the game achieves what it sets out to do, so congrats! I really like the that we start in the car and the game wait for our input to start really playing

About the sluggish jump mentionned in the other comment, i think it's because generally you don't want a jump to feel "linear", you want the ascension to be somewhat quick, the top of the curve to be "floaty" and the fall to be quicker than the ascension. When i made a platformer i changed the gravity for my player depending on if they're goind up or down, but it's just one way to do it. Another critique i would have is that to give more diversity to the patterns of the birds, you could make a "mario" jump, where taping the space bar will make a small jump, and holding it will make a big one; this would allow you to diversify the patterns a bit more.

Good job! I really like the take on the theme, very creative and relatable (watching the powerlines on a roadtrip)! I liked the particle fx when the builder ran across too. Perhaps the jumping at times felt a little sluggish but I think the balance you have at the moment with the birds works well :)