PHILADELPHIA (CBS) – The cost of Turkey Day dinner is going up.

The American Farm Bureau Federation says the cost of a 16 pound turkey is up more than six percent from last year, to just over $23.

The group blames the avian flu outbreak that killed millions of birds earlier this year.

“Our survey shows a modest increase in turkey prices compared to last year. But we’re now starting to see retailers feature turkeys aggressively for the holiday. According to USDA retail price reports, featured prices fell sharply just last week and were actually lower than last year,” says  AFBF Deputy Chief Economist John Anderson.

Overall, the average cost of Thanksgiving dinner for 10 people will be just over $50 this year.

Other menu items include sweet potatoes, rolls, stuffing and pumpkin pie mix.