Which sound device is used in the first and third lines of "birches" by robert frost? when i see birches bend to left and right across the lines of straighter darker trees, i like to think some boy's been swinging them. but swinging doesn't bend them down to stay. ice-storms do that. often you must have seen them loaded with ice a sunny winter morning after a rain. … consonance alliteration repetition assonance onomatopoeia