It can also interfere with reproduction. One purpose of Ever's research is to gather information about mercury levels in loons. Mercury pollution enters the atmosphere from such sources as garbage incinerators and the burning of coal. To respond to this Challenge Question please follow the instructions at the end of this report. By March 28 last year, migrating loons had already been spotted in 10 states and 1 province.
Some people believe that loons gather into large groups before migrating.
This may be where the loons at this site have gone. However, the loons may also follow their food, fish, around the bay. Maybe there are fewer fish, and therefore loons, inshore this time of winter. It is hard to say what is happening at this point. However, most of their heads are still gray and white.