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Call of the Wild: Loons

Call of the Wild: Loons
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The days grow shorter and colder. Our daughter catches me on the dock one afternoon, yelling across the pond at the young loon, “Get out of here!”

At the end of the 2010 field season, I’d spoken to Tiffany Grade, LPC’s field biologist for Squam Lake. Squam nests had again failed, one after the other. What most bothered her, she said, was one particular–and preventable–death. A male with a chick had been captured for banding and routine testing and was discovered to have elevated levels of lead. Attempts to recapture the male proved unsuccessful. A territorial battle ended with the weakened male beached on shore, and its chick, hatched the day before ours, killed by the attacking loon.

At Tufts, Mark Pokras performed a necropsy on the dead adult and found a fishing jig, made of lead, legal size. “That lead jig killed two loons,” Grade said.

In the end, only two chicks survived to fledge on the big lake. Elsewhere around the state, results were slightly better. But on Squam, once again, every individual mattered.

After each loon census now, Grade would call Rawson Wood at his home in Sanibel, Florida, to give him the numbers. Wood was over 100 years old and could no longer make the trip to Squam, but he still wanted to know how the loons were doing. Just a few miles from where he took the call, sandy beaches led down to the Gulf of Mexico.

Wood thanked Grade for the update. He told her that it had brought back so many memories. For that moment, he said, he could “still hear the loons.”

In early December, I wake to a grim scene: our pond frozen over, the young loon paddling far out from shore in a tiny black hole of open water. A short time later, I look out from our bedroom window and no longer see him there. Feeling heavy, almost resigned, I scan the surface. After so long, I wonder, is this how the story ends? I finally spot him, 50 yards away, motionless on the ice.

It is, I’m afraid, the beginning of the end. Deep mysteries remain about loons and their survival, but certain things are known, and the likely fate of a loon lying motionless on December ice is one of them. The knowledge saddens me, and makes me think about other things that researchers know, the measures that could be taken to save them.

Mark Pokras had told me that if you remove mortality due to lead poisoning–eliminate just that one factor–the loon survival ratio reaches the magic 0.48. Eliminate lead in fishing tackle, and get boaters to travel at no-wake speeds near nesting and brood areas, and–despite the dizzying environmental complexities–the New England loon population hits carrying capacity.

If loons are to survive the territorial battle taking place right now at the southern edge of their range, it will be human beings who must adapt. Harry Vogel points out that loons can successfully raise families on developed lakes–but the more our lakes stray from their original wild condition, he says, the more intensive the management required.

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One Response to Call of the Wild: Loons

  1. Alice Huppert March 22, 2014 at 1:27 pm #

    Sir: I read the very interesting article about loons. Can you help? We try each summer to visit places that loons inhabit from New Hampshire to Maine– as far as Umbagog and Katahdin. We see very few and hear even less! My first experience hearing loons was a very breathtaking one (In 2005). I’d heard it during the night and asked the manager in the morning what bird it was I’d heard. He told me “those are the loons.” From there on I have been almost hypnotized by them. At a loon store in New Hampshire (near Squam Lake) I purchased a teaching CD on loons. I play it frequently, especially in the dead of winter.

    I have a question: Will it be much too early to return to SquamLake near the end of April? OR where would you suggest we visit this spring/summer to almost assure us we will hear them?

    Thank you so very much for your reply!

    Alice Huppert

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