Did you play it in browser or the downloadable version? Did you sell any birds? Any more info as to when the crash appears, what actions you were taking or what was happening would be helpful.
I played for an hour today and could not reproduce a crash. I am sure there must be at least one big issue around, but i need to reproduce it to fix it.
I also looked into adding a save system. The short of it is that it would take a big rework, at least the kind of save system i had in mind. There might be another way to save the game that i'll investigate eventually. But really i'd also like to fix the crash bug(s), that is more important even.
