The Birding Bonus App

I'm trying to think of a birding app that could benefit others and encourage bird appreciation. The app would track the points you earn throughout the day for any or all interactions with birds.  You hear a bird chirping.  One point. You see a bird flying overhead.  Two points. You see your state bird, which for me is the cardinal---5 points.  Bird nest?  10 points.  You sight a bird you've never seen before, such as the prothonotary warbler or common yellowthroat.  20 points. Bald eagle. 50 points. Obviously.  Owl of any kind.  100 points.  

There would be other categories as well.  And possibilities for bonus points. At the end of the day, the person with the most points gets their name posted on a list.