From “Song of Myself”
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•Where the heifers browse, and the geese nip their food with short jerks;                                                                
•Where the sundown shadows lengthen over the limitless and lonesome prairie,  • Where the herds of buffalo make a crawling spread of the square miles far and  near;  • Where the hummingbird shimmers . . . . where the neck of the longlived swan is   curving and winding •Where the laughing-gull scoots by the slappy shore and laughs her near-human laugh . . .
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Note the word use (alliteration--slappy shore), repetition of Where, long lines, parallel structures.