Hey everyone, I'm the OP of this post. I didn't notice the smell for so long because the smell had started two weeks ago and only got worse everyday. I looked at my car and couldn't find the source. I sprayed it with febreze hoping that would make it go away. I'm a teenage girl, so I don't know much about cars so I figured it was just something in the hood. When I finally found the chicken, it had been under the backseat the whole time. My sister is actually only 9. I took her shopping with me and she offered to bring in all the bags. I guess I can't blame her though, because the chicken had been hiding. I told her about it and we laughed it off. My car smells fine now. Thanks for all the comments!