what is possessive form?

A possessive shows ownership. Nouns use an apostrophe and s.

dog's tail
Betty's coat
children's playground
houses' yards

These are the possessive pronouns:
http://www.grammar-monster.com/glossary/possessive_pronouns.htm

is says quail feather

How do you think quail can be made possessive?

i do not know.

is it quails'?

Please go back and study what I've already posted for you.

I will not simply give you the answer. That would be cheating!

is it quail's

am i right?

ms.sue what is cv?

Yes, quail's is right.

cv = consonant vowel