American Dippers (Cinclus mexicanus) in winter often foraged in habitats not used for nesting, including deltas of coastal creeks, and occasionally ponds, tiny streams, and ditches. The birds migrated altitudinally, at least 12 crossed a saltwater channel, and some apparently made wider, regional movements (5 to 50% of banded birds, with annual variation). In 2 relatively severe winters, we resighted fewer banded birds (<40% versus >65%) and annual survival was lower (<40% versus >50%), compared to 2 relatively mild winters. Birds foraging in the intertidal zone on deltas preyed on amphipods (low fat content) and fish, but this habitat was unavailable at high tide.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.