What's the Kennection? #36

The Inaccessible Island rail, which lives in the South Atlantic, is the world's smallest bird that can't do what?

In which Steven Spielberg film did Julia Roberts play Tinkerbell?

According to sportswriter Paul Zimmerman, the highest-scoring players on the Wonderlic, the NFL's intelligence test, play what position?

In 1521, Martin Luther was denounced by an edict of the imperial diet of what German city?

What kind of photoreceptor cell in the human eye is longer than a cone, but can't perceive color?

What's the "Kennection"?