Answer: no it’s not
Explanation: them is an objective case, not a possessive pronoun.
My favorite color is black because it goes with every color, and black can express many emotions like sadness, anxiety, depression, loneliness, anger, and sometimes even lust.
U use it when u are talking about a noun
Are you asking how to punctuate the sentence? If so, then....
The squirrel reached for the bird feeder, for he saw an abundance of sunflower seeds.
A comma is needed before the coordinating conjunction 'for' that separates the two independent clauses.