The game's idea is very novel and I think it is executed pretty well!, The game gets really trivial really quickly though, only 2 types of birds makes calculations really easy to do at the top of your head. If there could be more bird types that all gave different amounts of feathers that get shuffled not only in the type but also in the quantity, the game would be much more difficult in a good way.
I wish there was an end level button too but I get to look at the ducks for longer so I ain't complaining