-The Sharp-tailed Sparrows are now Nelson's Sparrow and Saltmarsh Sparrow.
-Some scientific names of chickadees were changed.
- A new family of Hawaiian birds was created. The only issue- they are all extinct.
-The finches were shuffled and scientific names were changed, so the pine siskin is now Spinus pinus, which is a great name.
So the only thing that really affects birders is that the sparrows now have shorter names.