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The golden-cheeked warbler is the only migratory bird that nests exclusively in Texas.
View images of birds found on the Balcones Canyonlands National Wildlife Refuge.
Listen to the sounds of calling birds that you might hear in the hill country during a visit to the refuge.
Watch videos with stories about birds on the refuge.
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Their songs are derived from a large syllable repertoire, an order of magnitude greater than that of other vireos.
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