I've got one more sentence I need help with. On the sentence, "Birds who tried to fish for food were covered with terrible black guck." Would there be a comma after Birds and after food..or would there be no commas in that sentence? Thanks...

No commas are needed in this sentence.

To determine whether commas are needed in the sentence, "Birds who tried to fish for food were covered with terrible black guck," we can break it down and identify the different clauses and elements.

1. "Birds who tried to fish for food"
2. "were covered with terrible black guck."

In this sentence, there is no need for a comma after "Birds" because the phrase "who tried to fish for food" is essential to identifying the specific birds being discussed. It provides crucial information, and therefore, there is no comma before the relative pronoun "who."

Regarding the second part of the sentence, we do not need a comma after "food" either. Since there are only two clauses ("Birds who tried to fish for food" and "were covered with terrible black guck"), and they are connected by the linking verb "were," there is no need for a comma.

Hence, to answer your question, there should be no commas in the sentence "Birds who tried to fish for food were covered with terrible black guck."