Meaning: Listening to the birds' songs makes me feel calm and peaceful.
Choice of Words: "Relaxed" means free from tension or anxiety, and "hear" means to perceive sound.
Alternative Expressions
Hearing them makes me feel relaxed.
Meaning: This sentence has the same meaning as the first sentence, but it emphasizes that the act of hearing the people or things that have been mentioned before is what causes the speaker to feel relaxed.
Choice of Words: The word hearing is the present participle of the verb hear, which means to perceive sound with your ears. Makes is a verb that means to cause something to happen. Relaxed means to feel calm and at ease. So, "Hearing them makes me feel relaxed" means that the act of hearing the people or things that have been mentioned before causes the speaker to feel calm and at ease.
I find relaxation in hearing them.
Meaning: This sentence has a slightly different meaning than the first two sentences. It suggests that the speaker finds a sense of calm and ease from hearing the people or things that have been mentioned before, rather than simply feeling relaxed when they hear them.
Choice of Words: The word find means to discover or obtain something. Relaxation is a noun that means the state of being calm and at ease. In is a preposition that means inside or within. Hearing is the present participle of the verb hear, which means to perceive sound with your ears. Them is a pronoun that refers to a group of people or things that have been mentioned before. So, "I find relaxation in hearing them" means that the speaker discovers or obtains a sense of calm and ease from hearing the people or things that have been mentioned before.