On Monday I wrote:

For the next few weeks, in honor of the fall raptor migration, I thought I'd post a shot of a hawk watch in New Jersey,New York or Pennsylvania, and see who can name the hawk watch. I know, fairly easy.

The answer: The Montclair Hawk Watch, second oldest in the United States, and operated by NJ Audubon.

You can read more here:

https://njaudubon.org/watches/montclair-hawk-watch/

This is the first of five Monday hawk watch mysteries.