Read this sentence.

we saw an amazingly rare bird while we were hiking in the jungle.

which answer identifies an adjective phrase and the word it modifies?

the adjective phrase rare bird modifies the word amazingly.

the adjective phrase amazingly rare modifies the word bird.

the adjective phrase in the jungle modifies the word hiking.

the adjective phrase while we were hiking modifies the word saw.

The adjective phrase 'amazingly rare' modifies the word 'bird'.

Why?

An adjective is a single word that describes a noun.

A noun is a person, place, or thing. This includes animals. :)

A phrase has more than one word in it.

Adjective + phrase  = more than one words used together to describe a noun.

In this case, the 'bird' is the noun being described. 

The bird is modified in our understanding. It's not just any bird. It's an amazingly rare one.

The adjective phrase amazingly rare modifies the word bird.

Explanation:

Just took the test

Stop stop stop stop stop stop stop stop