Thanksgiving turkeys expected to cost 15 to 20 percent more

Let's be real. The reason anyone ever comes over for Thanksgiving is typically the food (mainly turkey and stuffing) -- and okay, family and friends.

If you're infamous for your last-minute tendencies and haven't bought your turkey yet, brace yourself.

You may want to pass out a tip jar this year, because that bird could cost 20 percent more. That's according to an agricultural economist at Purdue University.

SEE ALSO: Quick fixes for Thanksgiving dinner kitchen disasters

It's all thanks to the avian flu. However, some farmers took steps to prevent bird flu.

"Part of the reason I didn't have avian flu here, I don't bring anything from outside here," farmer Frank Reese told KWCH.

"Much of the avian flu outbreak happened at factory farms," the reporter said.

Not everyone was that extreme, though. Bird flu has wiped out millions of birds -- including turkeys.

So, now, we're going to pay for it at the dinner table. The good news here is the economist expects other traditional Thanksgiving sides, like potatoes and cranberries, to cost the same.

RELATED: 30 DIYs for Thanksgiving

More on AOL.com:
This restaurant will bring strangers together for free meal on Thanksgiving
These 3-ingredient Thanksgiving appetizer recipes are simply delicious
5 Thanksgiving cooking hacks for less stress