The Snohomish County sheriff's office says 92 roosters, hens and chicks that were found sick and living in deplorable conditions had to be destroyed.
Det. Larry Cole says they were euthanized and cremated after a raid Wednesday on a farm near Snohomish suspected of raising game fowl for cockfighting.
The 46-year-old owner was released pending a decision from prosecutors on possible animal cruelty charges.
Deputies were tipped to the farm by the Humane Society of the United States that found the farm's Web site advertising birds "ready for the pit."
At the farm, Cole says, deputies found evidence that the birds were being given drugs and hormones to make them more violent.