Many of them since 72 anyway. [1] The birds I've had challenges with are Magpies. They kill the Finches including one breed that is the state bird Western Meadowlark that I feed but I found that if I can lure some Crows here they scare off the Magpies. I wish I knew how to keep the Crows around all the time. It's fun listening to them talk to one another. Farmers used to get paid to turn in Magpies but now they are under federal protection.
That has nothing to do with education... Education is in an egregiously pitiful state at this time. Why would you expect people to even know birds are protected when a quarter the country can't read and another quarter can barely do so?
[1] - https://www.audubon.org/news/the-history-and-evolution-migra...