Saturday, April 12, 2014

Common Loon

As I have written before, loons are among my favorite birds. I was delighted on Wednesday when Penny H. alerted me to a loon at a small pond in suburban Northfield. Common Loons, like the bird in the second photo, search for their prey by swimming while holding their heads under water .
Common Loons usually avoid foraging in deeper parts of lakes. They prefer lake edges between 50 and 150 meters from shore and in areas less than 5 meters deep. Here they find their preferred prey, common at these depths, fish generally smaller than 15 centimeters (Evers et al. 2010).

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