Things I've read online indicate that you can use cleaners and then suck up the stain with kitty litter...I actually did this for Tiki torch fluid stains on my gazebo, and it worked really well. But the gazebo is old and a darker wood, and I didn't really care about how it turned out. This is for my relatively new deck, which I do care about. The stain in question this time is bird suet grease. Anyone know what would be the safest ways to attempt first?