Final answer:
The phrase 'the cawing crows' exhibits both alliteration due to the repetition of the 'c' sound in 'cawing' and 'crows', and onomatopoeia because the word 'cawing' imitates the actual sound made by crows.
Step-by-step explanation:
The phrase 'the cawing crows' can be examined for both alliteration and onomatopoeia. Alliteration involves the repetition of consonant sounds at the beginning of words. In 'the cawing crows', the sound of 'c' repeats at the beginning of both 'cawing' and 'crows', which is a clear example of alliteration. However, onomatopoeia is a word that mimics the sound it represents. The word 'cawing' is onomatopoeic because it represents the actual sound that crows make. Therefore, the phrase 'the cawing crows' is an example of both alliteration and onomatopoeia.