Activity 1: I like the Osprey best because on the Wall of Birds it lives at the same place as I do, but also because there is a Osprey nest where I live and it it's so cool to watch the Ospreys fly around the nest and carry fish and other stuff to the young ones.
Activity 2: On one of my walks through the park by my house, I saw Blue Jays, Northern Cardinals and Northern Mockingbirds, group: Songbirds. By a pond I saw Muscovy Ducks with a lot of ducklings and a Anhinga, grouped as Waterfowl. There was also a Great Blue Heron, some White Ibis, some Wood Storks and a Limpkin, group: Wading birds.
Activity 3: It is really hard to pick a favorite, for there are about 10000 bird species in the whole world and I am supposed to narrow it down to one species?! I really like the Nanday Parrots with their loud calls and so cute relationships. Great Blue Herons are also really cool, as well as Red-Bellied Woodpeckers. But, if I have to pick a absolute favorite, it would be the Northern Mockingbird, because I always watch them in my yard, sometimes feeding young ones or fighting. And every time I come back to my house after a hike, two Northern Mockingbirds sit on the power lines, at the same spot every day.