Made a lot of progress today. The final major addition is this eagle, who comes screeching in to try and snatch the poor bird out of the sky:

I'm gonna turn the code over to @alanxoc3, who's got the music track ready and can hopefully make a few other improvements while I'm in bed. Then on Day 2 it'll be time for the main menu system and some major polishing. Reckon I'm doing okay so far!