Wayne R. Petersen
photo by Wayne R. Petersen
This issue's mystery photo bears a superficial resemblance to a floating log or some similarly-shaped floating debris, or possibly even a defunct military torpedo! However, in spite of my propensity for perversity in past photo quizzes (e.g., biting dipterid flies, upside-down images, or virtually-unidentifiable photos of species such as wood-pewees and crows), the bird in this image is indeed identifiable. And it should go without saying that the mystery bird is a waterbird that swims efficiently, unlike species such as frigatebirds and Sooty Terns or non-waterbirds like the swimming Wild Turkey chicks discussed in the August 2017 "At a Glance."
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. Bird Observer publishes original articles on birding locations, on avian populations and natural history, on regional rarities, and field notes, Massachusetts field records, photographs, and art work.