What kind of phrase is the underlined group words ducks waddled by creek?

The underlined group of words "ducks waddled by the creek" is a prepositional phrase.

Here's why:

* Prepositional phrases start with a preposition (in this case, "by") and are followed by a noun or pronoun (the creek).

* The prepositional phrase acts as an adverbial phrase, modifying the verb "waddled" by telling us where the ducks waddled.

Let me know if you have any other phrases you'd like to analyze!