I'll stick with precedent set when I put Georgia A.T. birds in Trail Concerns, Issues & History rather than Wildlife since this thread is another in a series about bird conservation which is becoming increasingly urgent.
Birds hikers might be expected to see and are less likely to see and why as well as conservation issues related to them will be the topic of this thread. Expect to learn some things about birds you didn't know, to see bird lists and to learn specific information about resident, migrant and breeding birds. There will also be questions hikers can help us answer.