Activity 1: I voted for the Carolina Wren from the Wall of Birds because we have really cute couple that lives in the backyard in NW Ohio. They have been frequenting our suet feeder in the cold weather.
Activity 2: We chose 3 birds- the Peregrine Falcon, the Common Raven, and the Clark's Grebe. In order, the Peregrine Falcon's are raptors, the Common Raven it doesn't fit into any of the simple groups described, but would be most similar to the crow that is grouped with song birds, and the Clark's Grebe is water fowl.
Activity 3: This is photo of a goldfinch. I recently purchased a finch feeder and within 1 week a small group of gold finches were visiting daily. It is winter, so their feathers are not as vibrant as during breeding season.