De Cora designed the title page of The Indians’ Book using what Curtis described as an adaptation of an older Indigenous motif representing the eagle and the “Eagle’s Song.” In highly conventionalized form, the soaring bird appears as a green figure whose points suggest “the two out-spread wings,” with the tail at the center and a yellow spot marking the head. From the beak rise “waving lines which broaden out as the song floats on the air,” a symbol repeated throughout the composition, where paired eagle forms join at the tips of wings and tails to create a symmetrical decorative design that frames the page. Curtis explains that the eagle is “loved and revered by the Indians,” the “strongest of all birds,” able to soar aloft and “look upon the sun, the giver of life,” and for this reason the emblem of the eagle and its song was chosen for the book’s title page. De Cora’s own affiliation with the Thunderbird clan further deepens the resonance of this imagery.