This column continues the discussion of osprey biology from my last column. I wrote about the dependence of osprey on live fish for food. Ospreys are not picky about the fish they prey upon in either salt- or freshwater environments. As long as the fish are in shallow water or within 3 feet of the surface of deeper water, they are at risk from an attack from above by a feathered menace.

Eight years ago on a Maine fly-fishing bulletin board, a young fly-fishing guide posted a comment that has stuck in my mind. He claimed that aquatic-insect hatches were so sporadic that he wondered why the events seemed important to people.

“Hatch Guide for New England Streams” by Tom Ames, Jr. hit bookstores 13 years ago, and yes, that figure generates a predictable comment from folks like me — “How time flies.”