Can someone tell me what the word gaagle means?

There’s many meanings

three

Explanation: The word “gaggle” is a collective noun, a medieval hunting term. There is no authoritative answer to how many geese make a gaggle but it's at least three. Three or more geese flocking on the ground is a gaggle; three or more geese flocking in the air are a skein.

In paragraph 47, it says “moments like these make a pioneering flight anything but dull” i’d say he’s optimistic and determined? ? and in 48, it describes how i’m assuming people he looks up to walked the same path so maybe he’s honored to be on the journey ? sorry if i’m wrong.

Where's the excerpt? also i think the answer is the last one