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1 March 2000 Arboreal Nocturnal Roosting Behavior of a Fledgling American Dipper
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Abstract

Although the American Dipper (Cinclus mexicanus) uses a variety of sites on the ground adjacent to streams for nocturnal roosts, I observed nocturnal roosting in a tree by this species, apparently the first reported case for any dipper species. A fledgling spent at least 8 hours between 20:06 and 04:30 MST sleeping 1.5 m high in a black cottonwood tree (Populus trichocarpa), at the tip of a branch overhanging a creek. Use of arboreal roost sites may reduce the probability of predation on fledgling dippers while they are sleeping.

Paul Hendricks "Arboreal Nocturnal Roosting Behavior of a Fledgling American Dipper," The Wilson Bulletin 112(1), (1 March 2000). https://doi.org/10.1676/0043-5643(2000)112[0148:ANRBOA]2.0.CO;2
Received: 1 August 1999; Accepted: 1 October 1999; Published: 1 March 2000
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