Will Vaseline keep squirrels off the bird feeder?

Vaseline can be used for making the path slippery for squirrels as squirrels find it challenging to walk or jump on a slippery path. But The Center for Wildlife says there are many ways to deter squirrels from climbing feeders; however, Vaseline and other lubricants can harm the animals. “Please do not coat your bird feeders in Vaseline, oil, butter, or anything like that. A well-placed slinky or baffle is much more effective and kind,” the Center for Wildlife said.