This is really a preventative medicine question: None of my hens have ticks, but last year was a very bad year in my area for ticks. I've read an article in the newspaper ( for what that's worth ) that this year is expected to be just as bad, or worse, than last year. I'm curious if that's something I should be concerned about with my birds. Is there some form of recommended preventive measure that I should take in the early spring to protect them against ticks ? Thank you !